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Provides essential safety warnings for operating power tools.
Lists disc types, applications, designations, and materials.
Table showing compatibility of discs with equipment.
Provides technical specifications for angle grinders.
Steps for securely attaching accessories to the spindle.
Table of common issues, causes, and actions.
This document describes the Hilti AG 100-7 (S/D), AG 100-8 (S/D), AG 115-7 (S/D), and AG 115-8 (S/D) angle grinders, which are hand-held electric power tools designed for professional use. These tools are intended for cutting and grinding metal and mineral materials without the use of water, performing dry grinding and cutting operations.
The Hilti AG series angle grinders are versatile power tools capable of performing various tasks. They are primarily designed for cutting, slitting, and grinding applications on both metal and mineral materials. The tools are equipped with a motor that drives an abrasive disc or cup wheel at high rotational speeds, allowing for efficient material removal and shaping. The design incorporates safety features such as a restart interlock, which prevents the tool from restarting automatically after a power interruption if the on/off switch is locked in the ON position. This requires the user to manually release and re-engage the switch, enhancing user safety. The tools are also designed with a keyed guard system, ensuring that only compatible guards can be installed and preventing the guard from interfering with the tool's operation.
The angle grinders are designed for ease of use and operator comfort. They feature a side handle that can be screwed into one of the provided threaded bushings, allowing for a firm, two-handed grip during operation. This is crucial for maintaining control, especially when resisting kickback forces. The guard can be easily adjusted by releasing a clamping lever, rotating it to the desired position, and then securing it. This allows for optimal positioning of the guard to protect the operator from flying debris and accidental contact with the rotating accessory. For specific applications, such as cutting masonry and concrete, a compact dust hood (DC-EX 100/4" C or DC-EX 115/4.5" C) can be attached. When grinding with straight grinding discs and cutting with cutting discs in metalworking, the standard guard with an additional front cover is recommended.
The tools offer different switching mechanisms depending on the model. Some models (AG 100-7S, AG 100-8S, AG 115-7S, AG 115-8S) feature a standard on/off switch that can be slid forward and locked for continuous operation. Other models (AG 100-7D, AG 100-8D, AG 115-7D, AG 115-8D) incorporate an on/off switch with a built-in safety lock and a dead-man function, requiring the user to press a release button before fully depressing the switch. This design ensures that the tool stops immediately if the switch is released, providing an additional layer of safety.
When cutting, users are advised to apply moderate feed pressure and avoid tilting the product or cutting disc, maintaining an approximate 90° angle to the cutting plane for best results, especially when working with profiles and small-section rectangular tubes. For rough grinding, the tool should be moved to and fro at a 5° to 30° angle of attack with moderate pressure to prevent overheating, discoloration, and ensure an even surface finish.
Maintaining the Hilti AG series angle grinders is essential for their longevity and safe operation. Users are instructed to keep the product, especially its grip surfaces, clean and free from oil and grease, using a slightly damp cloth for cleaning and avoiding spray, steam pressure cleaning, or running water. Regular cleaning of the air vents with a dry brush is important to prevent the accumulation of conductive dust, which can affect protective insulation and lead to electrical hazards, especially when working on metal.
Accessory tools, such as abrasive discs and diamond cup wheels, need to be replaced when their cutting or grinding performance significantly drops. Diamond segments should be replaced when their height is less than 2 mm (1/16"), and abrasive discs must be replaced by their expiry date. The spindle lockbutton should only be pressed when the spindle has stopped rotating to prevent damage to the accessory tool or the tool itself. After any maintenance or care work, all protective and safety devices must be checked to ensure they are correctly fitted and functioning faultlessly. In case of damage, such as a broken disc or if the tool has been dropped, it should be checked by Hilti Service. For electrical parts, repairs should only be carried out by trained electrical specialists. The manual also recommends using a ground fault circuit interrupter (PRCD) in the power supply line when working on metal under extreme conditions to mitigate electrical risks.
General| Power Input | 720 W |
|---|---|
| Disc Diameter | 115 mm |
| Vibration emission value | 5.5 m/s² |
| Rated Voltage | 230 V |
| Switch Type | Slide switch |
| Spindle Thread | M14 |
| No-load Speed | 11000 rpm |
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