DCF850P1 (Type 1) DeWALT Impact Driver - Overview

This synthetic gear grease is used to lubricate internal gears in power tools, reducing friction, wear, and noise during operation. Its high-performance formula helps prevent corrosion and protects moving parts under load. Applying fresh grease during maintenance restores smooth gear movement and extends tool life.

Keep bits securely locked in place with this steel ball, a small but essential component of the tool's bit retention and locking mechanism. It works with the chuck assembly to help hold bits securely during use while allowing smooth insertion and release when changing accessories. A worn, damaged, or missing steel ball can cause loose bit...Read more retention or locking issues, making replacement an important repair. Made from durable hardened steel for long-lasting performance, this component helps maintain reliable tool operation. Because the location of internal retention components can vary between models, refer to your tool's parts diagram or service manual to confirm the correct placement before installation. Sold individually.

This is an OEM authorized part. It is sold individually. This spring maintains pressure on the N078437 Sleeve, and the rest of the bit holder assembly, to keep the bit in the holder. If this part fails the bit cannot be held in the bit holder. It is commonly used in impact drivers, and is compatible with the impact drivers listed below.

Forming a key part of the impact driver's quick-release mechanism, this chuck collar ring helps retain and secure hex bits within the chuck assembly for reliable fastening performance. Working with the sleeve, spring, and locking components, it supports smooth bit insertion and removal while helping prevent accidental bit release during o...Read moreperation. Manufactured to original equipment standards, this ring is an ideal replacement for a worn, damaged, or missing component, helping restore proper bit retention, dependable chuck operation, and overall tool performance.

The Dewalt N042665 Screw is used on a number of Dewalt cordless tools to attach the belt hook the tool. This is a phillips head screw. It is also used to attach the Dewalt N268199 Bit Holder Bracket.

This is a genuine Dewalt replacement part, it is sold in individually with the mounting screw. The Dewalt Belt Hook is attached to the bottom of the handle assembly on the tool model numbers shown below. Its purpose is to hook the tool to your belt when not using the tool.