Tools / Power Tools
Bosch GWS 12V-76 Professional 76mm Compact Angle Grinder User Manual
Quick guide for the Bosch GWS 12V-76 Professional 76mm compact angle grinder. Includes assembly, battery handling, operation, and safety instructions.
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The Bosch GWS 12V-76 Professional is a compact, battery-operated angle grinder designed for cutting metal, stone, plastic, composite materials, and wood, as well as for roughing metal without the use of water. Always ensure the correct protective guard is used for the specific application.
Device description
Key components include the spindle lock button, on/off switch, battery, battery charge indicator, protective guard for grinding, protective guard for cutting, and the grinding spindle.
Assembly
Always remove the battery before performing any work on the tool (maintenance, tool change, etc.) or during transport and storage. Protective guards: Use the grinding guard (7) for grinding and the cutting guard (10) for cutting. The cutting guard (10) must be attached to the grinding guard (7) until it clicks into place. Abrasive tools: Clean the grinding spindle (8) and all parts to be mounted. Use the spindle lock button (2) to fix the spindle while tightening or loosening the clamping bolt (11) with the hex key (13).
Operation
Switching on/off: Push the on/off switch (3) forward to start. To lock it, press the front of the switch down until it clicks. To switch off, release the switch or press the rear part of the switch if it is locked. Rough grinding: Use the grinding guard (7). Maintain a 30° to 40° angle for best results. Cutting: Use the cutting guard (10). Work with moderate feed adapted to the material. Do not apply pressure to the cutting disc, tilt, or oscillate it.
Battery handling
Use only the chargers listed in the technical data. Lithium-ion batteries are supplied partially charged. Protect the battery from moisture, water, and heat (e.g., continuous sunlight, fire, dirt, water, and moisture) to prevent explosion and short-circuiting.
Safety
Always wear safety goggles. Use suitable detectors to find hidden supply lines. Do not touch grinding or cutting discs until they have cooled down. If the tool becomes electrostatically charged, the built-in electronics will switch it off; press the on/off switch again to restart.
Manufacturer information
Bosch
Practical help
Common problems
Tool switches off automatically
The tool may be electrostatically charged, overloaded, or the battery temperature is outside the permitted range. Switch off, allow the battery to cool, and restart.
Red LED indicator flashing
The tool is blocked. Pull the tool out of the workpiece; it will continue to work once the blockage is cleared.
Red LED indicator permanently lit
Battery temperature is too high. Switch off the tool and allow the battery to cool down.
Before use
- Check that the abrasive tool is fitted correctly and can turn freely.
- Perform a test run of at least 1 minute without load.
- Ensure the correct protective guard is installed for the intended task.
- Check battery charge level.
- Ensure the workpiece is securely clamped if not stable under its own weight.
Specs in practice
- Rated voltage
- 12V DC, indicating the tool is battery-operated.
- Rated no-load speed
- 19,500 min⁻¹, the maximum speed of the tool without load.
- Max. grinding disc diameter
- 76 mm, the maximum size of the disc that can be used.
Images and diagrams
- A: Mounting the protective guard for cutting onto the grinding guard.
- B1: Locking the spindle to loosen/tighten the disc.
- B2: Removing the clamping bolt and disc.
- B3: Attaching the disc and tightening the clamping bolt.
- B4: Releasing the spindle lock.
Model compatibility
- Use only GBA 12V series batteries.
- Use only GAL 12... or GAX 18... series chargers.
- Ensure the hole diameter of the abrasive tool matches the mounting flange.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.