Package Content - You will get 1 x Keyless Drill Chuck Adapter. 1 x 1/4 inch Hex Shank. Mount: 3/8-24UNF.
Firm 3-Jaw Design - Firmly fixed twist drills and step drill bits with 0.03 inch to 0.39 inch(0.8mm to 10mm) shank.
High Quality Material - The keyless chuck is made of premium alloy steel, durable and sturdy, has a long service life.
Quick Install - Quickly connects to any impact driver and converts to quickly switch tasks. Compatible with many different types of cordless drills. The drill chuck can NOT be used counterclockwise.