SF 30M‑22 (01)

About these operating instructions

• Warning! Read and understand all accompanying documentation, including but not limited to instructions, safety warnings, illustrations, and specifications provided with this product. Familiarize yourself with all the instructions, safety warnings, illustrations, specifications, components, and functions of the product before use. Failure to do so may result in electric shock, fire, and/or serious injury. Save all warnings and instructions for future reference.
  
• products are designed for professional users and only trained, authorized personnel are permitted to operate, service and maintain the products. This personnel must be specifically informed about the possible hazards. The product and its ancillary equipment can present hazards if used incorrectly by untrained personnel or if used not in accordance with the intended use.
  
• The accompanying documentation corresponds to the current state of the art at the time of printing. Please always check for the latest version on the product’s page on Hilti’s website. To do this, follow the link or scan the QR code in this documentation, marked with the symbol .
  
• Ensure that these operating instructions are with the product when it is given to other persons.
  

Explanation of signs used

Warnings

Warnings alert persons to hazards that occur when handling or using the product. The following signal words are used:

Symbols in the operating instructions

The following symbols are used in these operating instructions:

	Comply with the operating instructions
	Instructions for use and other useful information
	Cross-reference
	Dealing with recyclable materials
	Do not dispose of electric equipment and batteries as household waste
	Hilti Li-ion battery
	Hilti charger

Symbols in the illustrations

The following symbols are used in illustrations:

	These numbers refer to the illustrations at the beginning of these operating instructions.
	The numbers in illustrations refer to important work steps or to components important for the work steps. In the text, the corresponding numbers draw attention to these work steps or components, e.g. (3) .
	Item reference numbers are used in the overview illustration and refer to the numbers used in the product overview section.
	This symbol is intended to draw your special attention to certain points for handling the product.

Product-dependent symbols

General symbols

Symbols used in relation to the product.

	The product supports near-field communication (NFC) technology compatible with iOS and Android platforms.
	Li-ion battery
	Never use the battery as a striking tool.
	Do not drop the battery. Never use a battery that has suffered an impact or is damaged in any other way.

Warning signs

Warning symbols are warnings of hazards.

Warning – magnetic field

Prohibition symbols

Prohibition symbols indicate "must not do" actions.

Persons with cardiac pacemakers or other medical implants are not permitted to use this product.

"Must do" symbols

Obligation symbols indicate "must do" actions.

Always attach the clamping strap before using the product.

General power tool safety warnings

WARNING Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
Work area safety

• Keep work area clean and well lit. Cluttered or dark areas invite accidents.
  
• Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
  
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
  

Electrical safety

• Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
  
• Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
  
• Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
  
• Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
  
• When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
  
• If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.
  

Personal safety

• Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
  
• Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries.
  
• Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.
  
• Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
  
• Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
  
• Dress properly. Do not wear loose clothing or jewellery. Keep your hair and clothing away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
  
• If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
  
• Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.
  

Power tool use and care

• Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
  
• Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
  
• Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
  
• Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
  
• Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
  
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
  
• Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
  
• Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.
  

Battery tool use and care

• Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
  
• Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
  
• When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
  
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
  
• Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behaviour resulting in fire, explosion or risk of injury.
  
• Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130° C (265 °F) may cause explosion.
  
• Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.
  

Service

• Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
  
• Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.
  

Safety instructions for magnetic drills

• Do not use this tool if you or any bystanders have a cardiac pacemaker or other medical implants. Cardiac pacemakers and other medical implants may malfunction due to magnetic fields emitted by the tool, which may result in personal injury.
  
• Always check the safety strap for wear or damage before each use. A worn or damaged safety strap may fail unexpectedly during use and may result in personal injury.
  
• Only attach the magnetic drill to ferrous metal. The magnetic base will not secure properly to non-ferrous metals, such as non-magnetic grades of stainless steel.
  
• Clean the surface before attaching the drill stand to the work surface. Paint, rust or scale decrease the holding strength of the magnet. Chips, burrs, dirt and other foreign matter on the surface of the magnetic base will also decrease holding power.
  
• Always secure the magnetic base on a smooth, flat work surface. If the workpiece is uneven and not smooth or flat, the magnetic base may release from the workpiece, causing unexpected movement of the tool or workpiece and personal injury.
  
• Use clamps or other practical ways to secure and support the workpiece to a stable platform. It is important to support the workpiece properly to minimise body exposure, binding, or loss of control.
  
• Always use the safety strap provided or recommended to secure the tool to the workpiece before turning on the drill motor. The magnetic base may release from the workpiece, causing unexpected movement of the tool or workpiece and personal injury.
  
• Always activate the magnetic base and make sure it is securely attached to the workpiece before turning on the drill motor. Failure to secure the magnetic base to the workpiece may cause unexpected movement of the tool or workpiece and personal injury.
  
• Always ensure the workpiece is in a fixed or stable position. Unexpected movement of the workpiece may result in personal injury.
  
• Make sure you are in a stable position and able to control the tool while releasing the tool from the workpiece. A loss of control upon releasing the tool from the workpiece may result in personal injury.
  
• Keep your hands out of the drilling area while the tool is running. Contact with rotating parts or chips may result in personal injury.
  

• Do not use excessive feed force while drilling. Use of excessive feed force may cause the magnetic base to release from the workpiece, causing unexpected movement of the tool or workpiece and personal injury.
  
• Avoid generating long chips by regularly interrupting downward pressure. Sharp metal chips may cause entanglement and personal injuries.
  
• Never remove chips from the drilling area while the tool is running. To remove chips, move the bit away from the workpiece, switch off the drill motor and wait for the bit to stop moving. Use tools such as a brush or hook to remove chips. Contact with rotating parts or chips may result in personal injury.
  
• When performing drilling that requires the use of cutting fluid, route the cutting fluid away from the operator’s work area or use a liquid collection device. Such precautionary measures keep the operator’s work area dry and reduce the risk of electric shock.
  
• When the bit is jammed, stop applying downward pressure and turn off the tool. Investigate and take corrective actions to eliminate the cause of bit jamming.
  
• When restarting a drill in the workpiece, check that the bit rotates freely before starting. If the bit is bound it may not start, may overload the tool, or may cause the drill stand release from the workpiece.
  
• Do not deactivate the magnetic base until the tool is turned off and the bit has come to a complete stop. Premature deactivation of the magnetic base may cause unexpected movement of the tool or workpiece and personal injury.
  

Additional safety instructions

Personal safety

• Use the product and accessories only when they are in perfect working order.
  
• Do not touch the accessory tool or the tool holder directly after operation, because they can be extremely hot and cause burns to the skin. Make sure there is nobody in the work area where the chips are ejected.
  
• Do not use the product on the same workpiece on which electric welders are in use.
  
• To help avoid the risk of injury, do not hold the workpiece by hand.
  
• Comply with national, local and jobsite-specific health and safety requirements.
  
• Never tamper with or modify the product or accessories in any way.
  
• The magnetic foot is suitable for use on steel of thickness > 6 mm, without visible air gap between the underside of the magnet and the material. An air gap is produced by coats of paint and surface irregularities. Keep the air gap as narrow as possible. Air gaps between the magnet and the material weaken the magnetic adhesive force.
  
• Always set the magnetic foot on a flat surface (e.g. rectangular-section pipe or steel flat). Do not clamp the magnetic foot to small or irregularly shaped objects.
  
• Do not use the hand wheel and the magnet hand lever to lift the product.
  
• Risk of injury by falling accessory tools and/or falling accessories. Before starting work, check that the battery and installed accessories are secure.
  
• Keep the air vents clear at all times. Risk of burn injuries due to blocked air vents!
  
• The user and the other persons in the vicinity must wear suitable eye protection, a hard hat and ear protection while the product is in use.
  
• Take frequent breaks and do physical exercises to improve the blood circulation in your fingers. High vibration during long periods of work can lead to disorders of the blood vessels and nervous system in the fingers, hands and wrists.
  
• When you are not using the product, position it such that it does not constitute a trip hazard or fall hazard. Secure the product throughout use, setup and transport such that it cannot tip over.
  
• Keep clear of the danger zone below the activated magnetic foot. Never activate the magnetic foot when it is not in contact with the subbase material.
  
• Do not place a finger or other body parts between the magnetic foot and the subbase material.
  
• Do not touch rotating parts. Risk of injury.
  
• Never activate the magnetic foot when it is not in contact with the subbase material. The magnetic foot can unexpectedly snap into contact with the subbase material and this can lead to an injury.
  
• The product described is not suitable for hand-guided operation.
  
• When adjusting stroke, hold the motor housing firmly to prevent uncontrolled movements due to the weight of the motor unit.
  
• Make sure that the securing screws of the slide rails are sufficiently tightened before you raise, transport or use the product.
  
• Do not use accessory tools that do not comply with the information given in the section headed "Intended use".
  
• When undertaking break-through work, implement appropriate safety measures at the rear of the workpiece. Parts breaking away can fall out and/or fall down and injure other persons.
  
• Never drill into reinforcement or other load-bearing structures without prior consultation with the person in charge of the building project or the structural engineer.
  
• Risk of cut injuries. The cutting teeth of the accessory tool are sharp.
  
• The product produces high torque. The user must be prepared for sudden sticking or stalling of the accessory tool, under which circumstances the product can rotate round its own axis.
  
• Wear protective gloves when changing accessory tool or tool holder. There is a danger of cut injuries or burns when the accessory tool or the tool holder is touched.
  
• After the drilling operation, there is a risk of burn injuries if the sharp edges of the accessory tool, the chips or the workpiece are touched.
  
• Check the accessory tool before starting work and use only accessory tools that are undamaged and not deformed. Damaged or deformed accessory tools can cause serious injuries.
  
• Switch the product off immediately if the accessory tool jams. Under these circumstances, ascertain the cause and implement measures to eliminate the jam.
  
• If you want to restart the product that is engaged in the workpiece, before switching on check that the accessory tool rotates freely. If the accessory tool sticks or stalls it might not rotate and this can lead to overloading of the product or to the product disengaging from the workpiece.
  

Electrical safety

• Before beginning work, check the working area for concealed electric cables or gas and water pipes. External metal parts of the product could give you an electric shock or cause an explosion if you accidentally damage an electric cable or a gas or water pipe.
  

Use and handling of the power tool

• Never use solvents or other aggressive chemicals to clean the non-metallic parts of the product. These chemicals can attack the plastics used in these parts. Use only a cloth moistened with water and mild soap. Do not permit liquid to enter into the interior of the product. Do not dip parts of the product into liquid.
  
• After switching off the power supply to the magnet, wait until the product has come to a complete standstill before you detach the magnetic foot from the workpiece. The magnetic foot adheres to the workpiece for a moment before the magnetic foot detaches. A light tap with your hand detaches the magnetic foot from the workpiece.
  
• Always use the speed recommended for the accessory tool and the material.
  
• Never drill without cutting oil or other suitable cooling liquid.
  
• Excessive pressure on the hand wheel causes the magnet to break free.
  
• Keep the product, especially its gripping surfaces, clean and free from oil and grease.
  

Careful handling and use of batteries

• Comply with the following safety instructions for the safe handling and use of Li-ion batteries. Failure to comply can lead to skin irritation, severe corrosive injury, chemical burns, fire and/or explosion.
  
• Use only batteries that are in perfect working order.
  
• Treat batteries with care in order to avoid damage and prevent leakage of fluids that are extremely harmful to health!
  
• Do not under any circumstances modify or tamper with batteries!
  
• Do not disassemble, crush or incinerate batteries and do not subject them to temperatures over 80 °C (176 °F).
  
• Never use or charge a battery that has suffered an impact or been damaged in any other way. Check your batteries regularly for signs of damage.
  
• Never use recycled or repaired batteries.
  
• Never use the battery or a battery-operated power tool as a striking tool.
  
• Never expose batteries to the direct rays of the sun, elevated temperature, sparking, or open flame. This can lead to explosions.
  
• Do not touch the battery poles with your fingers, tools, jewelry, or other electrically conductive objects. This can damage the battery and also cause material damage and personal injury.
  
• Keep batteries away from rain, moisture and liquids. Penetrating moisture can cause short circuits, electric shock, burns, fire and explosions.
  
• Use only chargers and power tools approved for the specific battery type. Read and follow the relevant operating instructions.
  
• Do not use or store the battery in explosive environments.
  
• If the battery is too hot to touch, it may be defective. Put the battery in a place where it is clearly visible and where there is no risk of fire, at an adequate distance from flammable materials. Allow the battery to cool down. If it is still too hot to touch after an hour, the battery is faulty. Consult Hilti Service or read the document entitled "Instructions on safety and use for Hilti Li-ion batteries".
  
  Observe the special guidelines applicable to the transport, storage and use of Li-ion batteries.
  Read the instructions on safety and use of Hilti Li-ion batteries that you can access by scanning the QR code at the end of these operating instructions.
  

Product overview

1. Buttons panel
   
2. Carrying handle
   
3. Hand wheel
   
4. Magnet hand lever
   
5. Magnetic foot
   
6. Hex key
   
7. Tool holder
   
8. Slide rails
   
9. Indicator, speed stages
   
10. Increase speed button
    
11. button, switch on for clockwise rotation
    
12. indicator, warning
    
13. Activate/deactivate button
    
14. indicator, magnet
    
15. button, switch on for counter-clockwise rotation
    
16. Reduce speed button
    
17. Locking lever for stroke adjustment
    
18. Motor supply line
    
19. Battery release button
    
20. Battery status indicator
    
21. Ejector wedge
    
22. Clamping strap
    

Intended use

The product described is a magnetic core drilling machine. It is designed for drilling with core drill bits and twist drill bits, for countersinking and reaming, and for thread cutting. Permitted materials are steel and other metallic materials having a surface which enables secure magnetic attachment of the magnetic foot.
Maximum dimensions of the applications:

• Core drill bits for metal with a diameter up to 35 mm in steel up to a thickness of 50 mm.
  
• Countersinks for metal with a diameter up to 31 mm.
  
• Twist drills for metal with a diameter up to 18 mm.
  
• Reamers for metal with a diameter up to 18 mm.
  
• Thread taps for metal with a diameter up to M14
  

• For this product, use only Hilti Nuron lithium-ion batteries of the B 22 series. For optimum performance, Hilti recommends the batteries stated in this table for this product.
  

• For these batteries, use only Hilti chargers of the type series stated in this table.
  

Items supplied

Magnetic core drilling machine, clamping strap, ejector wedge, operating instructions
Other system products approved for use with this product can be found at your local Hilti Store or at: www.hilti.group

ATC

The product is equipped with the ATC (Active Torque Control) quick-acting electronic cut-out.
If the accessory tool sticks or stalls, the product will suddenly pivot about its own axis in the opposite direction. ATC detects this sudden pivoting movement of the product and switches the drill motor off immediately.

LED indicators

Status	Meaning
The Magnet indicator shows steady green.	The magnetic foot is activated.
The Magnet indicator shows steady red.	The magnetic foot is deactivated.
The Warning indicator flashes.	ATC has been triggered. Free the stuck accessory tool. The product is ready for use.
The Warning indicator shows steady.	The overload protection function has been triggered. If applicable, free the stuck accessory tool. Do not apply excessive pressure to the accessory tool. The product is ready for use.
Speed stages.	Speed is indicated in stages. One LED corresponds to one speed stage. The more LEDs showing, the higher the speed.

Status indicators of the Li‑ion battery

Hilti Nuron Li-ion batteries can indicate state of charge, fault messages and the battery's state of health.

Indicators for state of charge and fault messages

Short-press the release button of the battery to get whichever of the following status indications is applicable at the time.
State of charge and, if applicable, faults are indicated constantly as long as the connected product is switched on.

Status	Meaning
Four (4) LEDs show constantly green	State of charge: 100 % to 71 %
Three (3) LEDs show constantly green	State of charge: 70 % to 51 %
Two (2) LEDs show constantly green	State of charge: 50 % to 26 %
One (1) LED shows constantly green	State of charge: 25 % to 10 %
One (1) LED slow-flashes green	State of charge: < 10 %
One (1) LED quick-flashes green	The Li-ion battery is completely discharged. Charge the battery. If the LED again starts quick-flashing after the battery has been charged, consult Hilti Service.
One (1) LED quick-flashes yellow	The Li-ion battery or the product in which it is inserted is overloaded, too hot or too cold, or experiencing some other fault. Bring the product and the battery to the recommended working temperature and do not overload the product when it is in use. If the message persists, consult Hilti Service.
One (1) LED shows yellow	The Li-ion battery and the product in which it is inserted are not compatible. Consult Hilti Service.
One (1) LED quick-flashes red	The Li-ion battery is locked and cannot be used. Consult Hilti Service.

Indicators showing the battery's state of health

To check the battery's state of health, press the release button and hold it down for longer than 3 seconds. The system does not detect a potential malfunction of the battery due to misuse, for example battery dropped or pierced, external heat damage, etc.

Status	Meaning
All LEDs show in sequence, followed by one (1) LED showing constantly green.	The battery can remain in use.
All LEDs show in sequence, followed by one (1) LED quick-flashing yellow.	The check to ascertain the battery's state of health did not complete. Repeat the procedure, or consult Hilti Service.
All LEDs show in sequence, followed by one (1) LED showing constantly red.	If a connected product can still be used, the remaining battery capacity is below 50 %. If a connected product can no longer be used, the battery has reached the end of its useful life and has to be replaced. Consult Hilti Service.

Technical data

Weight in accordance with EPTA Procedure 01, without battery	12.9 kg
No-load speed (Forward rotation)	520 /min
No-load speed (Reverse rotation)	280 /min
Rated voltage	21.6 V
Ambient temperature for operation	−17 ℃ … 60 ℃
Storage temperature	−20 ℃ … 70 ℃

Battery

Battery operating voltage	21.6 V
Weight, battery	See the section headed "Intended use"
Ambient temperature for operation	−17 ℃ … 60 ℃
Storage temperature	−20 ℃ … 40 ℃
Battery charging starting temperature	−10 ℃ … 45 ℃

Speed stages (revolutions per minute)

Stage 1 (idling speed)	200 /min
Stage 2 (idling speed)	280 /min
Stage 3 (idling speed)	350 /min
Stage 4 (idling speed)	420 /min
Stage 5 (idling speed)	470 /min
Stage 6 (idling speed)	520 /min

Noise information

The sound pressure values given in these instructions have been measured in accordance with a standardized test and may be used to compare one power tool with another. They can also be used for a preliminary assessment of exposure.
The data given represents the main applications of the power tool. However, if the power tool is used for different applications, with different accessory tools or is poorly maintained, the data may vary. This may significantly increase exposure over the total working period.
An accurate estimation of exposure should also take into account the times when the power tool is switched off, or when it is running but not actually being used for a job. This can significantly reduce exposure over the total working period.
Identify additional safety measures to protect the operator from the effects of noise such as: maintaining the power tool and accessory tools, keeping the hands warm, organization of work patterns.
Noise information

Sound power level (LWA)	92 dB(A)
Emission sound pressure level (LpA)	83 dB(A)
Uncertainty (noise values) (KpA and KWA)	3 dB(A)

Charging the battery

1. Before charging the battery, read the operating instructions for the charger.
   
2. Make sure that the contacts on the battery and the contacts on the charger are clean and dry.
   
3. Use an approved charger to charge the battery.
   

Inserting the battery

1. Charge the battery fully before using it for the first time.
   
2. Push the battery into the product until it engages with an audible click.
   
3. Check that the battery is seated securely.
   

Removing the battery

1. Press the battery release button.
   
2. Remove the battery from the product.
   

Installing the hand wheel

1. Position the hand wheel on the desired side.
   
   • The feed scale can be used with "cm" or "inch".
     
   • Set the feed scale, turned in the desired direction, on the hand wheel.
     
2. Insert the securing screw on the opposite side.
   
3. Use the hex key to tighten the securing screw until it is hand-tight.
   

Changing the accessory tool

Inserting core bit

1. Slip the centering pin into the core bit.
   
2. Pull the clamping sleeve of the tool holder down.
   
3. Insert the core bit with the centering pin into the tool holder.
   
4. Check that the core bit holds securely.
   

Inserting drill bit

1. Loosen the left-hand thread of the tool holder by turning it clockwise (1) .
   
2. Turn the tool holder until the opening of the drive shaft is in line with the opening in the housing.
   
3. Insert the ejector wedge (2) .
   
4. Tap the ejector wedge with a hammer (3) .
   
   • The tool holder is released.
     
5. Remove the tool holder (4) .
   
6. Clean the internal taper of the output shaft.
   
7. Insert the drill bit and check that it holds securely (6) .
   
   Re-insert the tool holder:
   

   1. Insert the tool holder (MK2, MT2, CM2) and check that it is secure (undo step 5).
      
   2. Tighten the tool holder's left-hand thread by turning the tool holder counter-clockwise (undo step 1).
      

Activating magnetic foot

1. When working, always use the magnetic foot.
   
   • If the magnet indicator on the control panel shows green, the magnetic foot is activated. Note that the magnet indicator gives no indication of the strength of the magnetic adhesive force to the subbase material!
     
   • If the magnet indicator on the control panel shows red, the magnetic foot is not activated.
     
2. Set the magnet hand lever to the 30 % position for positioning the magnetic core drilling machine.
   
3. Set the magnet hand lever to the 100 % position for securing and switching on the magnetic core drilling machine.
   
   If 10 minutes pass without input via the control panel, the magnetic core drilling machine switches to sleep mode. The magnetic foot remains activated.
   

Deactivating magnetic foot

1. Push the hand lever sleeve up.
   
2. Set the hand lever to the 0 % position.
   
   • The grip sleeve returns automatically to the initial position.
     

Attaching clamping strap

1. Pass the clamping strap through the opening above the magnetic foot.
   
2. Loop the clamping strap round the workpiece and close the clamping strap.
   
3. Tighten the clamping strap.
   
4. Check that the product is held securely.
   

Adjusting the stroke

1. Keep a firm grip on the motor unit with one hand before you disengage the two locking levers.
   
2. With the other hand, disengage the two locking levers.
   
3. To move the locking levers one above the other, pull one locking lever out and then turn the locking lever in 45° steps.
   
4. Set the desired stroke range.
   
5. Re-tighten the two locking levers.
   
6. Check that the unit hold securely. It is not permissible for the motor unit to move by itself.
   

Setting speed

1. Activate the product by pressing the Activate/Deactivate button .
   
2. To reduce speed, press the button.
   
3. To increase speed, press the button.
   
   The speed setting you select is automatically saved in memory and is retained as the preset when you deactivate the product.
   

Starting and stopping drill motor

1. Activate the product by pressing the Activate/Deactivate button .
   
   • The speed last set is indicated.
     
2. If necessary, set the desired speed
   
3. Start the drill motor in clockwise rotation by pressing the button.
   
   In the event of overload, the motor switches off automatically and has to be restarted.
   
4. To stop the drill motor, press either the button or one or other of the / buttons.
   
   • Do not stop the drill motor during the drilling operation. First retract the accessory tool from the workpiece by turning the handwheel.
     
5. To start the drill motor in counter-clockwise rotation, press and hold down the button.
   
   • The drill motor runs for as long as the button is pressed.
     
6. Deactivate the product by pressing the Activate/Deactivate button .
   

Drilling

Feed

• Turn the hand wheel while the drill motor is switched on and advance the accessory tool into the workpiece.
  
• Always work with only the necessary pressure. Excessive pressure can lead to breakage of the core bit and/or loss of the magnetic adhesive force.
  

Drilling operation

• Do not stop the motor during the drilling operation. Turn the hand wheel and retract the accessory tool out of the workpiece before stopping the drill motor.
  
• If the accessory tool snags, stop the motor and carefully turn the accessory tool counter-clockwise and out.
  
• Remove the chips from the drillhole and from the workpiece after every drilling operation. Wear cut-resistant gloves or use a suitable hook.
  
• For drilling in coated materials, use a suitable accessory tool.
  

Sleep mode

If 10 minutes pass without input via the control panel, the magnetic core drilling machine switches to sleep mode.

• To deactivate sleep mode, press any button on the control panel.
  

Adjusting slide rails

After several operating hours the play in the slide rails can increase, in which case the motor unit is no longer held firmly enough. If this happens the motor unit can slip down, causing damage to the accessory tool.

1. Remove the accessory tool.
   
2. Set up the product such that the motor unit can be moved over the entire travel of the slide rails. If necessary, position the product with the tool holder above an edge.
   
3. On metal subbase material activate the magnetic foot or secure the product against movement/falling with the aid of the clamping strap.
   
4. Move the motor unit in the range of the locking levers to line up at the securing screws you want to tighten.
   
5. Retighten the securing screws of the slide rails.
   

   Materials
   Hex key, 2.5 mm

6. Move the motor unit gradually within the slide rails to line up with the securing screws until you have retightened all the securing screws.
   
   • The securing screws of the slide rails are ideally tightened when the motor unit can be moved easily by hand, but does not move by itself.