GSR 120-LI Professional - Drill BOSCH - Free user manual and instructions
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| Product Type | Cordless Drill Driver |
| Brand | Bosch |
| Model | GSR 120-LI Professional |
| Category | Drill |
| Battery Voltage | 12 V |
| Battery Type | Lithium-ion (Li-Ion) |
| Battery Capacity | 2.0 Ah (standard) |
| No-load Speed (1st Gear) | 0 – 400 rpm |
| No-load Speed (2nd Gear) | 0 – 1300 rpm |
| Max Torque (soft/hard) | 14 / 30 Nm |
| Chuck | Automatic Chuck 10 mm |
| Max Drilling Diameter (steel/wood) | 10 mm / 25 mm |
| Weight (with battery) | 1.1 kg |
| Dimensions (L x W x H) | 190 x 80 x 200 mm |
| Power Supply | 12 V Battery (charger included) |
| Main Functions | Drilling, screwdriving, mechanical torque adjustment, variable speed, rotation direction selection, spindle lock |
| Maintenance and Cleaning | Clean with a dry cloth, do not use abrasive products, keep ventilation slots clean |
| Safety | Motor brake, overload protection, emergency stop, insulated handle |
| Spare Parts and Repairability | Batteries, chargers, chucks, carbon brushes (repairable by professional) |
| General Information | User manual included (207 pages), compatible with Bosch Professional 12V system |
Frequently Asked Questions - GSR 120-LI Professional BOSCH
How to charge the battery for the first time?
Charge the battery fully with the supplied charger before first use. Charging time is about 1 hour for a 2.0 Ah battery. Use only Bosch Professional chargers.
What type of chuck is used on the GSR 120-LI?
It is equipped with a keyless chuck of 10 mm, allowing quick change of drill bits and screwdriver bits.
How to adjust the screwdriving torque?
Turn the torque adjustment ring located behind the chuck. The 20 positions allow you to adapt the torque for screwing without damaging the material.
What is the maximum speed of the drill?
The drill has two mechanical speeds: 0-400 rpm (for screwdriving) and 0-1300 rpm (for drilling). Select the speed via the selector on top of the tool.
Can this drill be used for drilling concrete?
The GSR 120-LI is designed for drilling in wood, metal, and soft materials. For concrete, it is better to use a hammer drill. However, with a suitable concrete bit, you can drill small diameter holes in brick.
How to maintain the drill?
Clean the ventilation slots regularly with a soft brush. Avoid moisture. Check the condition of the chuck and carbon brushes (every 50 hours of use). Have it serviced by a professional if necessary.
Is the battery interchangeable with other Bosch 12V tools?
Yes, the 12 V Li-Ion battery is compatible with all tools in the Bosch Professional 12V range (drills, screwdrivers, saws, etc.). The charger is also universal in this range.
What to do if the chuck jams or no longer tightens?
Unlock the chuck by turning the ring in the opposite direction. If the problem persists, clean the jaws with a dry cloth. For replacement, contact an authorized Bosch service center.
What are the essential safety precautions?
Wear safety goggles, hold the drill firmly, do not touch the rotating bit, disconnect the battery before any adjustment. Consult the manual for the full list.
Is the drill delivered with a case?
The standard model is delivered in a cardboard box. Some versions include an L-BOXX case. Check the accessories supplied in your packaging.
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