Bosch GSR 18V-21 Professional 1800 RPM 1.2 kg Black, Blue

The Bosch GSR 18V-21 Professional is a pistol grip drill designed for lightweight, everyday drilling and screwdriving tasks. Weighing 1.2 kg and offering a maximum idle speed of 1800 RPM, this cordless tool combines compact dimensions with functional performance. The drill accepts bits in a 1.3 cm chuck and is suitable for drilling wood up to approximately 3.5 cm in diameter. Supplied with two 2 Ah lithium-ion batteries, it provides extended operating time and quick battery swaps for continuous work.

Advantages

The tool’s low weight and pistol grip design reduce user fatigue and improve handling in tight spaces. Adjustable speed control and a reverse function allow precise screwdriving and controlled drilling. The built-in light enhances visibility in poorly lit areas. Battery power eliminates the need for mains connection, increasing mobility on job sites and around the home.

Suitable for

• Drilling holes in wood and soft materials
• Installing screws and assembling furniture
• General maintenance and repair work
• Work in confined or overhead spaces where a compact tool is required

Key specifications

• Maximum idle speed: 1800 RPM
• Chuck capacity: 1.3 cm
• Maximum recommended wood drilling diameter: 3.5 cm
• Weight: 1.2 kg
• Power source: Lithium-ion battery (2 Ah included, two batteries supplied)
• Adjustable speed control and reverse function
• Built-in work light
• Colour: black and blue

How to use

Install a charged 2 Ah battery into the tool according to the manufacturer’s instructions and select the appropriate drill bit or screwdriver bit for the task. Use the adjustable speed control to set a suitable RPM for the material and start drilling at a low speed to create a pilot hole if needed. Apply steady, even pressure; avoid forcing the tool to prevent bit damage and battery drain. Use the reverse setting to remove screws or release jammed bits. Replace batteries as needed to maintain consistent performance.

Recommendations

For best results when drilling wood, begin with a smaller pilot hole and increase speed gradually. Keep the built-in light aimed at the work area for improved accuracy in low light. Charge spare batteries before long jobs to ensure uninterrupted operation, and follow standard safety practices including eye protection and secure workpiece clamping.