Features 1、FIRM INSTALLATION: The chuck can firmly lock the drill and is not easy to loose. Compatible with all kinds of brands of electric drill, electric hammer on the market 2、HIGH STRENGTH AND HARDNESS: The keyed drill chuck adapter kit is wear resistant and oxidation resistant. Waterproof, corrosion resistant 3、EASY TO USE: The keyed drill chuck adapter kit features a three jaw chuck design with a key for quick replacement and easy locking 4、EFFICIENT AND FAST: The drill chuck adapter kit is suitable for multi function use with impact drivers and drills to quickly switch tasks and maintain work progress, increasing work efficiency 5、IDEAL REPLACEMENT: The drill chuck replacement is compatible with most rotary drills, impact drivers, and drill presses with 3/8‑24UNF mounting threads Specification Item Type: Keyed Drill Chuck Adapter Kit Material: No. 45 steel Drill Chuck Clamping Size: Approx. 1.5 ~ 10mm / 0.06 ~ 0.39in Drill Chuck Connection Thread: 3/8in Connecting Rod Diameter: Shank: 1/4in, Thread: 3/8in Package List 1 x Drill Chuck 1 x Drill Chuck Key 1 x Connecting Rod