- Care of the product
- Technical data
- Information about the documentation
- Overview of the product
- Intended use
- Items supplied
- Starting current limiter
- Constant-speed electronics
- Active Torque Control (ATC)
- Restart interlock
- Temperature-dependent product protection
- Front cover for the disc guard
- DG-EX 125/5″ dust hood for grinding (accessory)
- DC-EX 125/5″M dust hood for grinding (accessory)
WARNING! When cutting or slitting with cutting discs, always use the standard guard with additional cover plate.Discs
|Abrasive cutting disc||Cutting, slitting||AC‑D||Metal|
|Diamond cutting disc||Cutting, slitting||DC-TP, DC-D (SPX, SP, P)||Mineral|
|Abrasive grinding disc||Rough grinding||AG‑D, AF‑D, AN‑D||Metal|
|Diamond grinding disc||Rough grinding||DG-CW (SPX, SP, P)||Mineral|
|Wire brushes||Wire brushes||3CS, 4CS, 3SS, 4SS||Metal|
|Diamond core bit||Drilling in tiles||DD-M14||Mineral|
|Abrasive resin-fiber disc||Rough grinding||AP-D||Metal|
Suitability of discs for the equipment used
Care of the product
Electric shock due to breakdown of protective insulation. When working on metal under extreme conditions, conductive dust may accumulate inside the power tool, thereby adversely affecting the protective insulation.
- Use a stationary dust extraction system when working under extreme conditions.
- Clean the air vents frequently.
- Use a ground fault circuit interrupter (PRCD) in the electric power supply line to the power tool.
Electrical hazards. Improper repairs to electrical parts may lead to serious injuries.
- Electrical parts may be repaired only by trained electrical specialists.
- Never operate the product when the air vents are blocked. Clean the air vents carefully using a dry brush. Do not allow foreign objects to enter the interior of the product.
- Keep the product, especially its grip surfaces, clean and free from oil and grease. Do not use cleaning agents containing silicone.
- Clean the outside of the product at regular intervals using a slightly dampened cloth. Do not use a spray, steam pressure cleaning equipment or running water for cleaning.
Frequent work on conductive materials (e.g. metal, carbon fiber) may make shorter maintenance intervals necessary. Take your individual workplace risk assessment into account.
If the product is powered by a generator or transformer, the generator or transformer’s power output must be at least twice the rated input power shown on the rating plate of the product. The operating voltage of the transformer or generator must always be within +5 % and -15 % of the rated voltage of the product.
The information given applies for a rated voltage of 230 V. Actual figures can vary for country-specific versions and if the voltage supply differs. For rated voltage, frequency, input power and rated current, refer to the rating plate.
|Rated power input||1,300 W|
|Rated speed||11,500 /min|
|Maximum disc diameter||125 mm|
|Thread length||22 mm|
|Weight in accordance with EPTA procedure 01||2.5 kg|
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
Warnings alert you to hazards that can occur when you are handling or using the product. The following signal words are used in combination with a symbol:
|DANGER! Draws attention to imminent danger leading to serious injury or fatality.|
|WARNING! Draws attention to a potential threat of danger that can lead to serious injury or fatality.|
|CAUTION! Draws attention to a potentially dangerous situation that can lead to minor injury or damage to the equipment or other property|
Symbols in the documentation
The following symbols are used in this document:
|Read the operating instructions before use|
|Instructions for use and other useful information|
|Dealing with recyclable materials|
|Do not dispose of electric equipment as household waste|
Symbols in the illustrations
The following symbols are used in illustrations:
|These numbers refer to the corresponding illustrations found at the beginning of these operating instructions|
|The numbering reflects the sequence of operations shown in the illustrations and may deviate from the steps described in the text|
|Item reference numbers are used in the overview illustrations and refer to the numbers used in the product overview section|
|This symbol is intended to draw special attention to certain points when handling the product.|
|Wireless data transfer|
Symbols on the product
The following symbols are used on the product:
|Wear eye protection.|
|Revolutions per minute|
|Revolutions per minute|
|Protection class II (double-insulated)|
Hilti products are designed for professional use and may be operated, serviced and maintained only by trained, authorized personnel. This personnel must be informed of any particular hazards that may be encountered. The product described and its ancillary equipment may present hazards when used incorrectly by untrained personnel or when used not as directed.
The type designation and serial number are printed on the rating plate.
|Angle grinder||AG 125-13S|
Overview of the product
- Spindle lockbutton
- On/off switch
- Air vents
- Vibration-absorbing side handle
- Clamping nut
- Kwik lock clamping nut (optional)
- Cutting disc / grinding disc
- Clamping flange with O-ring
- Quick locking system
- Guard release button
- Threaded bushing for handle
The product described is a hand-held electric angle grinder. It is designed for cutting and grinding metal and mineral materials, and for brushing, sanding and drilling in tiles, all without use of water. It may used only for dry cutting / grinding.
The tool may be operated only when connected to a power supply providing a voltage and frequency in compliance with the information given on its rating plate.
The power tool may be used for cutting, slitting and grinding mineral materials only when equipped with the corresponding guard and front cover.
A dust removal hood together with a suitable Hilti vacuum cleaner must be used for working on mineral materials such as concrete or stone.
Angle grinder, side handle, standard guard, front cover, clamping flange, clamping nut, 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 | USA:
Starting current limiter
The electronic starting current limiter reduces the starting current drawn to prevent the line fuse from tripping. This prevents abrupt start-up of the product.
Electronic speed control keeps running speed almost constant irrespective of whether the power tool is idling or running under load. Constant running speed helps ensure maximum efficiency.
Active Torque Control (ATC)
The electronics detect potential stalling of the disc and prevent further rotation of the arbor by switching off the product.
If the ATC system has been triggered, restart the product. Do this by releasing the on/off switch and then pressing it again.
If the ATC system fails, the product will run at greatly reduced speed and with greatly reduced torque. Have the product checked by
The product does not restart by itself when the on/off switch is locked in the ON position and power is restored after an interruption in the electric supply. The on/off switch must first be released and then pressed again.
Temperature-dependent product protection
The temperature-dependent motor protection system monitors current input and motor temperature and thus prevents the power tool overheating.
If the motor is overloaded through application of excessive working pressure, the product’s performance drops noticeably or it might stall completely. A standstill should be avoided. No specific value can be given for the permissible overloading limit for the power tool as it depends on motor temperature.
Front cover for the disc guard
When grinding with straight grinding discs and cutting with cutting discs in metalworking applications, use the standard guard with front cover.
DG-EX 125/5″ dust hood for grinding (accessory)
The grinding system is suitable only for occasional use with diamond cup wheels for grinding mineral materials.
CAUTION Use of this hood for working on metal is prohibited.
DC-EX 125/5″M dust hood for grinding (accessory)
The power tool may be used for cutting and slitting work on mineral materials only when fitted with a dust hood.
CAUTION Use of this hood for working on metal is prohibited.