Dewalt Accessories DW0521 3/8 in Keyless Chuck

Product Description

The DEWALT ACCESSORIES DW0521 is a 3/8 inch keyless chuck designed to convert any 1/4 inch impact driver into a standard drill chuck application. Built with all-metal construction, this quick-connect chuck attaches to a 1/4 inch hex shank impact driver and accepts 3/8 inch round-shank drill bits and accessories. The single-sleeve design allows for one-handed tightening and release, keeping workflow moving on the jobsite. Installation requires no tools: slide the collar back from the front of the driver, twist the chuck onto the 1/4 inch impact driver, and release the collar to lock it in place. Licensed electricians, plumbers, HVAC techs, and general trade professionals who run impact drivers as their primary driver tool will find this chuck a straightforward addition to their kit.

This chuck is suited for residential and light commercial trade work where a single tool needs to handle both impact-driving and standard drill-bit tasks. It converts a 1/4 inch quick-connect impact driver to accept 3/8 inch bits without requiring a separate drill, reducing the number of tools needed on a service call or installation job. The quick-connect interface means the chuck can be swapped on and off the impact driver quickly between tasks.

Key Features

• 3/8 inch keyless chuck accepts standard round-shank drill bits and accessories
• Quick-connect design threads onto any 1/4 inch hex shank impact driver
• All-metal construction for jobsite durability
• Single-sleeve, single-handed tightening and release
• Tool-free installation via slide-and-twist collar mechanism

Compatibility

Designed for use with any 1/4 inch quick-connect impact driver.

Installation Notes

Installation is performed by a qualified tradesperson or knowledgeable user without special tools. Before attaching or removing the chuck, ensure the impact driver is powered off and the battery is removed or the tool is unplugged. Slide the collar back from the front of the impact driver, twist the DW0521 onto the 1/4 inch hex shank, and release the collar until it locks. Do not use this chuck to exceed the torque or capacity ratings of the host impact driver.