Black Decker DCF850B Brushless Impact Driver Tool Only

Product Description

The BLACK DECKER DCF850B is a cordless, brushless impact driver built for demanding fastening work on the jobsite. It runs on a 20V MAX lithium-ion battery platform and delivers up to 1825 inch-pounds of torque through a 1/4-inch hex drive. Three selectable speed settings let the operator match drive speed and power to the application, reducing the risk of overdriving fasteners or damaging workpieces. The brushless motor extends tool life and improves runtime efficiency compared to brushed designs. Sold as a bare tool, the DCF850B is compatible with existing 20V MAX batteries and chargers. Licensed electricians, plumbers, HVAC technicians, and general contractors are the primary installers.

This impact driver suits residential and light commercial applications where compact size and high torque output are both required. Typical uses include installing electrical boxes, hanging plumbing supports, assembling ductwork frames, and driving fasteners into wood framing or metal track. The tool-only configuration makes it a practical addition for tradespeople already invested in the 20V MAX battery system, eliminating the cost of redundant batteries and chargers. It is equally useful for service work and new construction where a compact, high-output driver is needed in tight spaces.

Key Features

• 1825 inch-pounds of maximum torque for heavy fastening tasks
• 3-speed selector matches drive settings to the application
• Brushless motor design for improved efficiency and longer service life
• 1/4-inch hex drive accepts standard quick-change bits
• Cordless operation on 20V MAX lithium-ion battery platform
• Sold as bare tool — no battery or charger included

Compatibility

Designed for use with 20V MAX lithium-ion batteries. No specific compatible model numbers or replacement part numbers were provided in the product data.

Installation Notes

Installation and operation of this tool should follow applicable jobsite safety protocols and local codes, including NEC requirements where electrical fastening work is involved. Always confirm the battery is removed before changing bits or performing any maintenance. Do not exceed the rated drive size or attempt to use non-hex-shank accessories. A licensed tradesperson should perform any work requiring code compliance or inspection.

Technical Specifications

• Product Type: Impact Driver
• Power Source: Cordless
• Battery Type: 20V MAX Lithium-Ion
• Battery Included: No
• Charger Included: No
• Drive Size: 1/4 inch Hex
• Maximum Speed: 3250 RPM
• Maximum Torque: 1825 inch-pounds
• Speed Settings: 3
• Variable Speed: Yes
• Housing Material: Plastic

Standard Information

• Brand: BLACK DECKER
• Manufacturer Part Number: DCF850B