SCO 6-A22

Original operating instructions

Information about the documentation

About this documentation

  • Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free handling and use of the product.
  • Observe the safety instructions and warnings in this documentation and on the product.
  • Always keep the operating instructions with the product and make sure that the operating instructions are with the product when it is given to other persons.

Explanation of symbols used


Warnings alert persons to hazards that occur when handling or using the product. The following signal words are used:
  • Draws attention to imminent danger that will lead to serious personal injury or fatality.
  • Draws attention to a potential threat of danger that can lead to serious injury or fatality.
  • Draws attention to a potentially dangerous situation that could lead to personal injury or damage to the equipment or other property.

Symbols in the documentation

The following symbols are used in this document:
Image alternative Read the operating instructions before use.
Image alternative Instructions for use and other useful information
Image alternative Dealing with recyclable materials
Image alternative Do not dispose of electric equipment and batteries as household waste

Symbols in the illustrations

The following symbols are used in illustrations:
Image alternative These numbers refer to the corresponding illustrations found at the beginning of these operating instructions
Image alternative The numbering reflects the sequence of operations shown in the illustrations and may deviate from the steps described in the text
Image alternative Item reference numbers are used in the overview illustrations and refer to the numbers used in the product overview section
Image alternative This symbol is intended to draw special attention to certain points when handling the product.

Product-dependent symbols

Symbols on the product

The following symbols are used on the product:
Image alternative Wear protective glasses
Image alternative Direct current (DC)
Image alternative Rated speed under no load
Image alternative Revolutions per minute
Image alternative Revolutions per minute
Image alternative The product supports wireless data transmission compatible with iOS and Android platforms.
Image alternative Li-ion battery
Image alternative Hilti Li-ion battery type series used. Observe the information given in the section headed Intended use .
Image alternative Never use the battery as a striking tool.
Image alternative Do not drop the battery. Never use a battery that has suffered an impact or is damaged in any other way.

Product information

Hilti products are designed for professional use and may be operated, serviced and maintained only by trained, authorized personnel. 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 type designation and serial number are printed on the rating plate.
  • Write down the serial number in the table below. You will be required to state the product details when contacting Hilti Service or your local Hilti organization to inquire about the product.
    Product information
    Cut-out tool
    SCO 6-A22
    Serial no.

Declaration of conformity

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We declare, on our sole responsibility, that the product described here complies with the applicable directives and standards. A copy of the declaration of conformity can be found at the end of this documentation.
The technical documentation is filed here:
Hilti Entwicklungsgesellschaft mbH | Tool Certification | Hiltistrasse 6 | 86916 Kaufering, Germany


General power tool safety warnings

Image alternative 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.
  • 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 routers

  • Use clamps or another practical way to secure and support the workpiece to a stable platform. Holding the work by your hand or against the body leaves it unstable and may lead to loss of control.

Additional safety instructions for cut-out tools

Personal safety
  • Use the product and accessories only when they are in perfect working order.
  • Never tamper with or modify the product or accessories in any way.
  • Always hold the product with both hands on the grips provided. Keep the grips clean and dry.
  • Do not touch rotating parts – risk of injury!
  • Wear eye protection, a hard hat and ear protection and suitable respiratory protection while the product is in use.
  • Do not look directly into the light source (LED) of the product and do not aim the beam at other persons’ faces. Risk of dazzling or eye damage.
  • Never touch the clamping nut or collet when the accessory tool gets stuck and stalls.
  • 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.
  • The product is not intended for use by debilitated persons who have received no special training. Keep the product out of reach of children.
  • If work involves break-through, always secure the area on the side opposite where the work is carried out. Pieces of debris could drop out and/or fall down and injure other persons.
  • Slits cut into load-bearing walls or other structures can influence the statics of the structure, especially when reinforcing bars or load-bearing components are cut. Consult the responsible structural engineer, architect or person in charge of the building project before starting work.
  • Before switching on the product, check that the collet is fitted and that the clamping nut is tightened.
  • Use only accessory tools with the correct shank diameter and of a type suitable for the speed of the product.
  • Make sure that the accessory tools used have a mounting system compatible with the product and that they are correctly engaged in the chuck.
  • Dust produced by grinding, sanding, cutting and drilling can contain dangerous chemicals. Some examples are: lead or lead-based paints; brick, concrete and other masonry products, natural stone and other products containing silicates; certain types of wood, such as oak, beech and chemically treated wood; asbestos or materials that contain asbestos. Determine the exposure of the operator and bystanders by means of the hazard classification of the materials to be worked. Implement the necessary measures to restrict exposure to a safe level, for example by the use of a dust collection system or by the wearing of suitable respiratory protection. The general measures for reducing exposure include:
  • working in an area that is well ventilated,
  • avoidance of prolonged contact with dust,
  • directing dust away from the face and body,
  • wearing protective clothing and washing exposed areas of the skin with water and soap.
  • To avoid risk of injury, use only genuine Hilti accessories and accessory tools.
  • Comply with national health and safety requirements.
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.
Power tool use and care
  • Switch the product off immediately if the accessory tool jams. The product might twist off-line.
  • Wait until the product has come to a complete stop before you lay it down.

Careful handling and use of batteries

  • Observe the special guidelines applicable to the transport, storage and use of lithium-ion batteries.
  • Do not expose batteries to high temperatures, direct sunlight or fire.
  • Do not disassemble, crush or incinerate batteries and do not subject them to temperatures over 80 °C (176 °F).
  • Do not use or charge batteries that have suffered mechanical impact, have been dropped from a height or show signs of damage. In this case, always contact your Hilti  Service .
  • 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. Contact Hilti Service .


Product overview

Image alternative
  1. Vacuum cleaner hose connector
  2. LED lights
  3. Depth gauge
  4. Securing screw
  5. On/off switch
  6. Switch-on interlock
  7. Accessory tool
  8. Collet
  9. Clamping nut
  10. Insulated grip surface
  11. Spindle lockbutton
  12. Insulated grip surface
  13. Air vents
  14. Release button with additional function (charge state display activation)
  15. Battery

Intended use

The product described is a hand-held cordless cut-out tool. It is designed for making cut-outs in drywall board, gypsum fiber board, composite materials and wood or wood-like materials.

The product comes with a removable vacuum cleaner hose connector for common vacuum-cleaner hoses. The connector fits on to the product, enabling it to be connected to a vacuum cleaner.
  • Use only Hilti Li‑ion batteries of the B 22 series with this product.

  • Use only Hilti battery chargers of the C4/36 series for charging these batteries.

Items supplied

Cut-out tool, depth gauge, three collets (3.2 mm (1/8"), 4 mm (5/32"), 6.4 mm (1/4")), clamping nut, vacuum cleaner hose connector, hex wrench, operating instructions.
Other system products approved for use with this product can be found at your local Hilti Store or at: www.hilti.group

Safety devices

This product has a motor protection system. It monitors current consumption and motor temperature and prevents the product from overheating.
If the motor is overloaded through application of excessive working pressure, the product’s performance drops noticeably or it might stall completely.
If the power tool stalls or slows significantly due to overloading, release the pressure applied to the product and then allow it to run under no load for approx. 30 seconds.


The following accessory tools can be used with the cut-out tool:
  • Guidepoint bit (3.2 mm (1/8"))
  • Standard bit (3.2 mm (1/8"))
  • Universal guidepoint bit (4 mm (5/32"))
  • Window/door guidepoint bit (6.4 mm (1/4"))
  • Metal bit (4 mm (5/32"))

Technical data

Cut-out tool

SCO 6-A22
Rated voltage
21.6 V
Rated speed under no load
30,000 /min
Weight in accordance with EPTA procedure 01
1.4 kg
Weight B 22/2.6
0.48 kg
Weight B 22/3.0
0.58 kg
Weight B 22/5.2
0.78 kg
Operating temperature
−17 ℃ … 60 ℃
Storage temperature
−20 ℃ … 70 ℃
Clamping nut
16 mm (5/8") external hexagon
Collet diameter
3.2 mm (1/8"), 4 mm (5/32"), 6.4 mm (1/4")
Cutting bit shank diameter
3.2 mm (1/8"), 4 mm (5/32"), 6.4 mm (1/4")

Battery temperature ranges

Battery operating temperature
−17 ℃ … 60 ℃
Battery charging starting temperature
−10 ℃ … 45 ℃
Battery storage temperature
−20 ℃ … 40 ℃

Noise information and vibration values in accordance with EN 62841

The sound pressure and vibration values given in these instructions were measured in accordance with a standardized test and can be used to compare one power tool with another. They can also be used for a preliminary assessment of exposure.
The data given represent 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 can vary. This can significantly increase exposure over the total working period.
An accurate estimation of exposure should also take into account the times when the 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 and/or vibration, for example: maintaining the power tool and accessory tools, keeping the hands warm, organization of work patterns.
Noise information
Sound power level (LWA)
90 dB(A)
Uncertainty for the sound power level (KWA)
3 dB(A)
Emission sound pressure level (LpA)
79 dB(A)
Uncertainty for the sound pressure level (KpA)
3 dB(A)
Total vibration
Vibration emission value (aWA)
2.5 m/s²
1.5 m/s²


Preparations at the workplace

Risk of injury by inadvertent starting!
  • Before inserting the battery, make sure that the product is switched off.
  • Remove the battery before making any adjustments to the power tool or before changing accessories.
Observe the safety instructions and warnings in this documentation and on the product.

Inserting the battery

Image alternative
  1. Push the battery into the battery holder until it engages with an audible click.
  2. Check that the battery is seated securely.

Removing the battery

Image alternative
  1. Press the release buttons on the battery.
  2. Pull the battery out toward the rear.

Fitting an accessory tool

Risk of damage. The collet can break if tightened when no accessory tool is fitted.
  • Never tighten the collet when no accessory tool is fitted.
Image alternative
  1. Clean the connection end of the accessory tool.
  2. Check that the collet has been fitted.
  3. Press the spindle lockbutton and hold it in this position.
  4. Insert the accessory tool in the collet and tighten the clamping nut with the hex. wrench.
  5. Release the spindle lockbutton.
  6. Check that the accessory tool is held securely.

Removing the accessory tool

Risk of injury! The accessory tool may be hot and/or have sharp edges.
  • Wear protective gloves when changing the accessory tool.
  • Never lay down a hot accessory tool on a flammable surface.
  1. Press the spindle lockbutton and hold it in this position.
  2. Use the hex. wrench to release the clamping nut.
    • The collet is slack.
  3. Remove the accessory tool.

Changing the collet

Image alternative
  1. Press the spindle lockbutton and hold it in this position.
  2. Use a hex. wrench to release and remove the clamping nut.
  3. Remove the existing collet and fit the collet you wish to use.
  4. Screw on and tighten the clamping nut and then release the spindle lockbutton.

Installing the depth gauge

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Risk of injury! A damaged depth gauge may present a risk of inadvertent contact with the accessory tool.
  • Do not use the power tool if the depth gauge is defective.
  1. Hold the depth gauge in position on the product and tighten the securing screw.
  2. Slacken the securing screw to adjust the depth gauge.
  3. Slide the depth gauge to the desired position and re-tighten the securing screw.
  4. Before starting, make sure that the space behind the workpiece is enough to keep the accessory tool from contacting a hard object.

Installing the vacuum cleaner hose connector

Image alternative
  1. Remove the accessory tool.
  2. Install the hose connector on the product and set the connector to the desired position.
  3. Engage the retaining lugs.

Types of work

Risk of damage by incorrect handling!
  • Do not operate the switches for direction of rotation and/or function selection during operation.
Observe the safety instructions and warnings in this documentation and on the product.

Holding the product correctly

Image alternative
  1. Use clamps or some other practical means to secure the workpiece and keep it in a stable position.
  2. Use both hands to hold the product firmly when working.
    • The product can become unstable if you attempt to hold it with only one hand or pressed against a part of the body and this can result in loss of control.

Switching on

The on / off switch with safety lock (switch-on interlock) gives you full control of the switch function and avoids unintentional starting.
Image alternative
  1. Push the safety lock forward.
    • The on/off switch is unlocked.
  2. Press the on/off switch as far as it will go.
    • The power tool’s motor runs at no-load speed.

Switching off

  • Release the on/off switch.
    • The switch-on interlock jumps automatically into the locked position.


  1. Hold the product firmly without the accessory tool contacting the working surface.
  2. Switch on.
  3. Guide the accessory tool straight into the material in which the cut-out is to be made, until the depth gauge is in contact with the working surface.
  4. Applying steady pressure, advance the accessory tool.

Care and maintenance

Risk of injury with battery inserted !
  • Always remove the battery before carrying out care and maintenance tasks!
Care of the product
  • Carefully remove stubborn dirt.
  • Carefully clean the air vents, if present, with a dry, soft brush.
  • Use only a slightly damp cloth to clean the housing. Do not use cleaning agents containing silicone as these can attack the plastic parts.
  • Use a dry, clean cloth to clean the contacts of the product.
Care of the Li‑ion batteries
  • Never use a battery with clogged air vents. Clean the air vents carefully using a dry, soft brush.
  • Avoid unnecessary exposure of the battery to dust and dirt. Never expose the battery to high levels of moisture (e.g. by being dipped in water or left in the rain).
    If a battery has been soaked by moisture, treat it as a damaged battery. Isolate it in a non-flammable container and consult Hilti Service.
  • Keep the battery free of extraneous oil and grease. Do not permit dust or dirt to accumulate unnecessarily on the battery. Clean the battery with a dry, soft brush or a clean, dry cloth. Do not use cleaning agents containing silicone as these can attack the plastic parts.
    Do not touch the contacts of the battery and do not remove the factory-applied grease from the contacts.
  • Use only a slightly damp cloth to clean the housing. Do not use cleaning agents containing silicone as these can attack the plastic parts.
  • Check all visible parts and controls for signs of damage at regular intervals and make sure that they all function correctly.
  • Do not use the product if signs of damage are found or if parts malfunction. Immediately have the product repaired by Hilti Service.
  • After cleaning and maintenance, install all guards and protective devices and check that they are in full working order.
To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables. Spare parts, consumables and accessories approved by Hilti for use with your product can be found at your Hilti Store or online at: www.hilti.group

Transport and storage of cordless tools and batteries

    Accidental starting during transport !
  • Always transport your products with the batteries removed!
  • Remove the battery/batteries.
  • Never transport batteries loose and unprotected. During transport, batteries should be protected from excessive shock and vibration and isolated from any conductive materials or other batteries that may come in contact with the terminals and cause a short circuit. Comply with the locally applicable regulations for transporting batteries.
  • Do not send batteries through the mail. Consult your shipper for instructions on how to ship undamaged batteries.
  • Prior to each use and before and after prolonged transport, check the product and the batteries for damage.
    Accidental damage caused by defective or leaking batteries !
  • Always store your products with the batteries removed!
  • Store the product and the batteries in a cool and dry place. Comply with the temperature limits stated in the technical data.
  • Do not store batteries on the charger. Always remove the battery from the charger when the charging operation has completed.
  • Never leave batteries in direct sunlight, on sources of heat, or behind glass.
  • Store the product and batteries where they cannot be accessed by children or unauthorized persons.
  • Prior to each use and before and after prolonged storage, check the product and the batteries for damage.


If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by yourself, please contact Hilti Service.


Trouble or fault
Possible cause
Action to be taken
The battery runs down more quickly than usual.
Very low ambient temperature.
  • Allow the battery to warm up slowly to room temperature.
The battery doesn’t engage with an audible click.
The retaining lugs on the battery are dirty.
  • Clean the retaining lugs and refit the battery.
1 LED blinks.
The power tool doesn’t run.
Battery is discharged.
  • Change the battery and charge the empty battery.
The battery is too hot or too cold.
  • Allow the battery to cool down or warm up slowly to room temperature.
All 4 LEDs blink.
The power tool doesn’t run.
The tool has been overloaded.
  • Release the control switch and then press it again. Then allow the power tool to run under no load for approx. 30 seconds.
The cut-out tool or the battery get very hot.
Electrical fault.
  • Switch the power tool off immediately, remove the battery, keep it under observation, allow it to cool down and contact Hilti Service.
The motor has no braking effect.
Battery is discharged.
  • Change the battery and charge the empty battery.
The power tool was overloaded briefly.
  • Release the on/off switch and then press it again.


Risk of injury due to incorrect disposal! Health hazards due to escaping gases or liquids.
  • DO NOT send batteries through the mail!
  • Cover the terminals with a non-conductive material (such as electrical tape) to prevent short circuiting.
  • Dispose of your battery out of the reach of children.
  • Dispose of the battery at your Hilti Store , or consult your local governmental garbage disposal or public health and safety resources for disposal instructions.
Image alternative Most of the materials from which Hilti products are manufactured can be recycled. The materials must be correctly separated before they can be recycled. In many countries, your old tools, machines or appliances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti sales representative for further information.
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  • Do not dispose of power tools, electronic equipment or batteries as household waste!

RoHS (Restriction of Hazardous Substances)

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Click on the link to go to the table of hazardous substances: qr.hilti.com/r5212951.
There is a link to the RoHS table, in the form of a QR code, at the end of this document.

Manufacturer’s warranty

  • Please contact your local Hilti representative if you have questions about the warranty conditions.