Do you have a question about the Bosch GBH 3-28 DFR and is the answer not in the manual?
Input power | 800 W |
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Power source | AC |
Impact rate | 4000 bpm |
Rated speed (max) | 900 RPM |
Impact energy (max) | 3.1 J |
Drilling diameter in wood (max) | 30 mm |
Drilling diameter in steel (max) | 13 mm |
Drilling diameter in concrete (max) | 28 mm |
Optimum drilling diameter (concrete) | 12 - 18 mm |
Weight (including battery) | 3600 g |
Read all safety warnings and instructions to prevent electric shock, fire, and injury.
Keep work area clean, avoid hazards, ensure proper grounding, and protect from moisture.
Stay alert, use common sense, wear protective equipment, and avoid distractions.
Wear ear protectors and use auxiliary handles for safe operation.
Details on the machine's intended applications and a list of its features.
Article numbers, power input, impact rate, speed, and tool holder specifications.
Measured sound and vibration values according to EN 60745 standards.
Statement of conformity with EU directives for safety and electromagnetic compatibility.
Instructions for positioning the auxiliary handle and setting the drilling depth.
Guidance on choosing and fitting key type and quick change chucks.
Detailed steps for removing and inserting the quick change chuck.
Procedures for inserting and removing SDS-plus and other drill bits.
Mounting and adjusting the dust extraction accessory for clean operation.
Instructions for starting the tool and selecting operating modes like drilling or chiselling.
Adjusting speed/impact rate, reversing rotation, and understanding the safety clutch.
Instructions for using screwdriver bits and following best practices for operation.
Guidelines for keeping the tool clean and in good working order.
Information on obtaining spare parts, service, and environmentally friendly disposal.