Bosch GSB 120-LI Professional Cordless Impact Drill
The Bosch GSB 120-LI Professional is a powerful 12V cordless impact drill driver that delivers flexibility within reach for screwdriving and drilling in wood, steel, plastics, and masonry . The optimised 2-speed gearbox (0-400/0-1,500 rpm) provides high productivity with excellent torque (14/30 Nm) . Impact rate: 22,500 bpm. Chuck capacity: 0.8-10mm. Electronic Cell Protection guards the battery from under-voltage, excessive current draw, and deep discharge, prolonging its lifetime and increasing durability . Weight: 0.9 kg (excluding battery) . Suitable for electricians, plumbers, carpenters, and construction professionals. Order number: 0.601.9G8.1K0 (with 2 x 2.0Ah batteries and charger).
Table of Contents
ToggleBosch GSB 120-LI Professional Cordless Impact Drill
PRIMARY USES
1. Versatile Drilling and Screwdriving for Construction and Installation
Primary Use: A compact 12V cordless impact drill driver (2-speed gearbox, 30 Nm max torque) used for screwdriving and drilling in wood, steel, plastics, and masonry. Essential for electricians, plumbers, carpenters, and maintenance technicians requiring a lightweight, versatile tool for daily installation and assembly work.
How it helps: For tradespeople and construction professionals, the impact drill delivers flexibility and power within reach for screwdriving and drilling in a variety of materials . The optimised 2-speed gearbox enables high productivity on the job with excellent torque during operation . The 3-mode operation (screwdriving, drilling, and impact drilling) allows users to tackle a wide range of tasks without needing multiple tools, making it a true all-rounder.
2. Light to Medium Masonry Drilling
Primary Use: Drills into brick, soft stone, and masonry using the hammer mode for faster penetration.
How it helps: The impact function delivers up to 22,500 impacts per minute , enabling efficient drilling into masonry materials for wall plug installation and fixing brackets. The 10mm chuck capacity ensures compatibility with standard masonry drill bits for most common installation tasks.

SECONDARY USES
1. Wood Drilling: Drills holes in wood and wood-based materials up to 20mm capacity .
2. Metal Drilling: Drills into steel and aluminium up to 10mm capacity .
3. Screwdriving: Drives screws with 20+2 torque settings for precise control .
4. General Maintenance: Suitable for repairs, furniture assembly, and installation of equipment.
1. BASIC IDENTIFICATION ATTRIBUTES
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Device Type: Cordless impact drill driver; not a medical device.
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Designation: Bosch GSB 120-LI Professional
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Order Number: 0.601.9G8.1K0 (2 x 2.0Ah kit), 0.601.9G8.1C1 (1 x 2.0Ah), 0.601.9G8.1H0 (2 x 2.0Ah with case)
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Battery Voltage: 12.0 V
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Chuck Capacity: 0.8 – 10 mm
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Weight (excl. battery): 0.9 kg
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Country of Origin: India
2. TECHNICAL & PERFORMANCE PROPERTIES
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Primary Action: Rotational drilling with impact function.
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Torque (Soft/Hard/Max.): 14 / 30 / - Nm
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No-Load Speed (1st/2nd gear): 0 – 400 / 0 – 1,500 rpm
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Max Impact Rate: 22,500 bpm
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Torque Settings: 20+2
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Battery Type: Lithium-Ion
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Drilling Capacity Wood: 20mm
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Drilling Capacity Metal: 10mm
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Vibration Emission (ah): 1.5 m/s²
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Uncertainty K: 0.8 m/s²
3. PHYSICAL & OPERATIONAL PROPERTIES
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Preparation: Insert a compatible 12V Bosch Professional battery until it clicks into place.
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Usage Instructions: Select the appropriate mode (screwdriving, drilling, or impact drilling) using the mode selector. Adjust speed with the variable speed trigger. Use the torque setting ring for screwdriving control. Use the forward/reverse switch to change direction.
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Functions: 3 modes (screwdriving, drilling, impact drilling)
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Lighting: LED illuminates the workspace
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Ergonomics: Compact, lightweight design for comfortable use
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Storage Conditions: Store in a dry, secure place.
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Cleaning: Clean housing with soft, dry cloth.
4. SAFETY & COMPLIANCE ATTRIBUTES
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Safety Classification: Cordless power tool; risk of injury from rotating parts and kickback. Eye protection recommended.
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Battery Protection: Electronic Cell Protection guards against under-voltage, excessive current draw, and deep discharge
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Included Accessories: 2 x GBA 12V 2.0Ah battery, GAL 1210 CV charger, carrying case
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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 battery contacts. Check that the battery is properly charged before use.
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Usage: Remove battery before changing bits or performing maintenance.
1. SAFETY PRECAUTIONS
Personal Protective Equipment (PPE): Always wear safety goggles when drilling. Use hearing protection where appropriate. Wear protective gloves when changing drill bits.
Electrical Safety: Use with original Bosch Professional 12V batteries and chargers only. Do not use damaged batteries or chargers.
Kickback Hazard: Maintain a firm grip and proper stance. Ensure the 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.
Maintenance: Remove battery before changing bits or performing maintenance. Allow the tool to cool before storing.
Training requirement: No specialised training required. Basic instruction on correct usage and safety procedures is recommended.
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 casing may burn if exposed to fire. Lithium-ion batteries can leak or rupture if exposed to high temperatures.
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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