Bosch Professional 18V-21 Cordless Drill/Driver

Product Description

The Bosch Professional 18V-21 is a high-performance cordless drill/driver engineered for professional use. It is designed for driving and loosening screws, as well as drilling in wood, metal, ceramic, and plastic. The GSB 18V-21 model includes an additional impact drilling mode for working with brick, concrete, and stone.

Technical Data

• Rated Voltage: 18V
• No-load Speed (1st/2nd gear): 0–480 / 0–1800 min⁻¹
• Impact Rate (GSB model): 0–27,000 min⁻¹
• Max. Torque (hard/soft): 55/21 Nm
• Max. Drilling Diameter (Wood/Steel/Masonry): 35/10/10 mm
• Weight (depending on battery): 1.7–2.7 kg

Safety Instructions

General Power Tool Safety: Always keep the work area clean and well-lit. Do not operate power tools in explosive atmospheres. Keep children and bystanders away. Use personal protective equipment, including eye protection.

Battery Safety: Recharge only with the charger specified by the manufacturer. Use only designated battery packs. Protect the battery against heat, continuous sunlight, fire, dirt, water, and moisture to prevent explosion and short-circuiting.

Operation

Starting Operation: Set the rotational direction switch to the center position to prevent accidental starting. Insert the charged battery into the handle until it engages. Use the rotational direction switch to change the direction of rotation. Adjust the speed by varying the pressure on the On/Off switch.

Operating Modes: Use the torque presetting ring to select the required torque for screwdriving. For drilling, set the ring to the drilling symbol. For the GSB model, use the operating mode presetting ring to select between drilling, screwdriving, and impact drilling.

Maintenance and Service

Maintenance: Always remove the battery before performing any work on the tool (e.g., maintenance, tool change, transport, or storage). Keep the tool and ventilation slots clean for safe operation.

Carbon Brushes: Check the length of the carbon brushes every 2–3 months and replace both if necessary. Use only original Bosch carbon brushes.

Disposal

Power tools, batteries, accessories, and packaging should be sorted for environmentally friendly recycling. Do not dispose of power tools or batteries in household waste.