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.
Material - The keyless chuck is made of Metal, 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 drills. The drill chuck can NOT be used counterclockwise.
Material:Metal
colour:Black
Package Contents:
1 x drill chuck