Bosch GSB 20-2 RE Professional Impact Drill
The Bosch GSB 20-2 RE Professional is an 800W corded impact drill with a two-speed gearbox (0-1,100 rpm / 0-3,000 rpm) for increased versatility and high torque performance . It delivers an impact rate of up to 48,000 bpm, rated torque of 5.2 Nm (1st gear) / 2.0 Nm (2nd gear), and a 13mm keyed metal chuck . The tool features forward/reverse rotation, mechanical speed preselection, and a robust metal gear housing for long service life . Drilling capacities: 40mm in wood, 13mm in steel, and 20mm in concrete . Weight: 2.5kg. Includes depth stop, auxiliary handle, and carrying case depending on variant . Suitable for construction professionals, electricians, plumbers, and maintenance technicians. Order number: 0.601.1A2.1L0 (with case).
Table of Contents
ToggleBosch GSB 20-2 RE Professional Impact Drill
PRIMARY USES
1. Heavy-Duty Drilling and Screwdriving for Professional Applications
Primary Use: A powerful corded impact drill (800W motor, 13mm chuck capacity, two-speed gearbox) used for screwdriving and drilling in wood, metal, and masonry. Essential for construction professionals, electricians, plumbers, and maintenance technicians requiring high torque and versatility for demanding jobs.
How it helps: For professionals working on heavy-duty tasks, the GSB 20-2 RE delivers the power and versatility needed for demanding applications . The two-speed gearbox provides dual speed capability (0-1,100 rpm in first gear and 0-3,000 rpm in second gear), allowing users to switch between high torque for large diameter drilling and high speed for smaller diameter drilling . The powerful 800W motor ensures enhanced performance and durability, making it suitable for drilling with hollow core bits, hole saws, and mixing applications . The robust pot stacked metal gear housing design ensures a long lifetime even under continuous heavy loads .
2. Versatile Drilling with Impact and Rotation Modes
Primary Use: Features both drilling and impact drilling modes for versatile applications in various materials.
How it helps: The dual mode impact shifter allows users to switch between rotation-only mode for drilling in wood, metal, and plastic, and impact drilling mode for concrete, stone, and masonry . The 13mm keyed chuck provides secure bit holding even under demanding conditions.

SECONDARY USES
1. Wood Drilling: Drills holes in wood up to 40mm diameter .
2. Metal Drilling: Drills into steel up to 13mm diameter .
3. Masonry Drilling: Drills into masonry up to 22mm diameter and concrete up to 20mm diameter .
4. Screwdriving: Drives screws with forward and reverse operation.
5. Mixing: Can be used for mixing applications with appropriate accessories .
6. Accessory Applications: With appropriate accessories, can be used for sanding, polishing, grinding, and brushing .
1. BASIC IDENTIFICATION ATTRIBUTES
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Device Type: Corded impact drill; not a medical device.
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Designation: Bosch GSB 20-2 RE Professional
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Order Numbers: 0.601.1A2.1L0 (with case, auxiliary handle) , 0.601.1A2.1F1 (with auxiliary handle) , 0.601.1A2.1D3 (with case, Brazilian variant)
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Rated Input Power: 800W
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No-Load Speed (1st Gear): 0 – 1,100 rpm
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No-Load Speed (2nd Gear): 3,000 rpm
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Impact Rate: 0 – 48,000 bpm
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Rated Torque: 5.2 / 2.0 Nm (1st/2nd gear)
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Chuck Capacity: 1.5 – 13 mm
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Chuck Type: Keyed chuck (1/2"-20 UNF spindle thread)
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Weight: 2.5 kg
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Spindle Collar Diameter: 43mm
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Country of Origin: Not specified
2. TECHNICAL & PERFORMANCE PROPERTIES
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Primary Action: Rotational drilling with impact function via two-speed gearbox.
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Motor Type: 800W high-performance motor for enhanced performance and durability
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Gears: 2-speed mechanical gearbox
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Rotation: Forward and reverse operation
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Speed Control: Stepless speed control via On/Off switch pressure
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Gear Selection: Mechanical selector with two positions (1st and 2nd speed)
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Impact Mechanism: Dual mode impact shifter for drilling without impact and impact drilling
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Drilling Capacity (Wood): 40mm
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Drilling Capacity (Steel): 13mm
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Drilling Capacity (Concrete): 20mm
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Drilling Capacity (Masonry): 22mm
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Sound Pressure Level: 103 dB(A)
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Sound Power Level: 114 dB(A)
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Vibration (Drilling Metal): 3.0 m/s²
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Vibration (Impact Drilling Concrete): 18.5 m/s²
3. PHYSICAL & OPERATIONAL PROPERTIES
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Preparation: Select appropriate drill bit (HSS for metal, carbide-tipped for masonry). Insert into the keyed 13mm chuck and tighten using the chuck key .
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Usage Instructions: Select the appropriate gear using the gear selector. Adjust speed using the variable speed trigger. Use the mode selector to switch between rotation-only and impact drilling modes. Use the forward/reverse switch to change rotation direction.
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Mode Selector: Two positions (Drilling/Driving and Impact Drilling)
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Gear Selector: Two positions (1st and 2nd gear)
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Ergonomics: Robust design with auxiliary handle for two-handed operation
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Included Accessories: Chuck key, depth gauge, auxiliary handle ; carrying case depending on variant
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Storage Conditions: Store in a dry, secure place.
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Cleaning: Clean housing with soft, dry cloth. Keep air vents clear.
4. SAFETY & COMPLIANCE ATTRIBUTES
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Safety Classification: Power tool; risk of injury from rotating parts, impact mechanism, and kickback. Eye protection, hearing protection, and heavy-duty gloves recommended.
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Safety Features: Pot stacked metal gear housing for robustness and durability; auxiliary handle for secure grip; lock-on button for continuous operation
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Electrical Safety: Check power cord for damage before use. Do not operate in wet conditions. Hold power tool by insulated gripping surfaces when drilling where hidden wiring may be contacted .
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Regulatory: Complies with applicable safety standards.
5. STORAGE & HANDLING ATTRIBUTES
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Storage: Store in a dry, secure place.
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Inspection: Regularly inspect chuck and power cord for damage. Check that the chuck is securely tightened.
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Usage: Always unplug before changing bits or performing maintenance. Allow the tool to cool before storing.
1. SAFETY PRECAUTIONS
Personal Protective Equipment (PPE): Always wear safety goggles and hearing protection when drilling. Wear protective gloves when changing drill bits. Use respiratory protection when drilling materials that generate dust.
Electrical Safety: Check power cord and extension cord for damage before use. Do not operate in wet conditions or near water. Use RCD where required.
Kickback Hazard: Use the auxiliary handle at all times. Maintain a firm grip and proper stance. Ensure the drill bit is securely tightened in the chuck before use. Do not apply excessive pressure.
Dust Hazard: Drilling generates dust. Use appropriate respiratory protection and ensure adequate ventilation. Prevent dust accumulation at the workplace as dust can ignite .
Maintenance: Unplug tool before changing bits or performing maintenance. Allow the tool to cool before storing.
Training requirement: Operators should be familiar with correct usage, bit selection, and safety procedures.
2. FIRST AID MEASURES
Eye Injury (debris): Do not rub. Rinse immediately with plenty of clean water for at least 15 minutes, holding eyelids open. Seek medical attention.
Cut Injury: Apply direct pressure to stop bleeding. Clean wound with clean water. Cover with sterile dressing. Seek medical attention if bleeding is profuse or the wound is deep.
Skin Contact (dust): Wash skin with soap and water. If irritation develops, seek medical attention.
Inhalation of Dust: Move a person to fresh air. If symptoms persist (coughing, difficulty breathing), seek medical attention.
3. FIRE FIGHTING MEASURES
Flammability: The tool is not flammable, but plastic casing may burn if exposed to fire. Dust accumulation can ignite .
Extinguishing Media: Use water spray, foam, dry chemical powder, or carbon dioxide (CO₂) for fires involving tools.
Fire Response: In event of fire, evacuate the area and call emergency services. Use appropriate extinguishers; water may be used for general fires but not for electrical fires where live equipment is involved.
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