18v impact driver DeWalt DCF850D2T-QW 3 gears 208nm 2x2ah

The DeWalt 18V impact driver DCF850D2T-QW combines a high-torque motor with a compact, ergonomic body to deliver reliable fastening performance. Designed for trade and workshop use, this impact driver features three selectable gear ranges and a maximum torque of 208 Nm. Supplied with two 2.0 Ah batteries, it balances run-time and weight for continuous work on demanding fastening tasks. The compact design and balanced grip make it suitable for working in confined spaces while maintaining effective impact delivery for screws and bolts.

Advantages

The three-gear gearbox gives precise control over speed and torque for a variety of applications, while the 208 Nm maximum torque provides the capacity to drive larger fasteners and tackle tougher materials. Two 2 Ah batteries allow quick changeovers and reduced downtime. The compact, lightweight housing improves accessibility in tight or overhead positions and reduces operator fatigue during extended use. The tool’s impact mechanism reduces user effort by efficiently converting motor power into rotational force.

Suitable for

• Driving long screws and lag bolts into wood and composite materials
• Installing decking, fencing and framing work
• Mechanical assembly where high torque is required
• Maintenance and repair tasks in workshops or on site
• DIY projects requiring a balance of power and compact size

Key specifications

• Voltage: 18 V
• Maximum torque: 208 Nm
• Gearbox: 3 selectable gears
• Batteries included: 2 × 2.0 Ah lithium-ion
• Power source: rechargeable battery
• Form factor: compact, pistol-grip impact driver

How to use

Insert a charged 2.0 Ah battery into the base of the tool and select the appropriate gear for the task: lower gears for controlled starts and smaller fasteners, higher gears for maximum speed and driving power. Fit the correct bit into the hex chuck and position the driver square to the fastener head. Apply steady pressure and squeeze the trigger to engage the impact action; release the trigger to stop. For repeated fastening, change batteries as needed to maintain consistent performance.

Usage recommendations

Use appropriate screwdriver bits and fasteners rated for impact drivers, wear eye protection during operation, and ensure batteries are charged and stored according to the manufacturer’s instructions. For maximum battery life, avoid complete deep discharges and store batteries in a cool, dry place between uses.