Features: Made of 45# hardened steel with CR-V coated body and sleeve electrophoretic enameling for superb durability. Specifically engineered for tight tolerance. The key is also made of 45# steel and applied with black oxide finishing to avoid breaking, bending or rust. Well perfect for drilling machines, suitable for centering, drilling, tapping, reaming operation. Compatible with impact drill and different power tool electric drill. Classic key three-jaw design, quick Change and easy lock. Easily and securely to install a wide range of twist drills with 5-20mm shanks. Specification: Name:Drill Chuck Conditions:100% brand new and high quality Materia:drop forged steel Color: Black + silver Drill chuck hole:22mm Chuck Length: 105mm Clamping Range: 5 - 20mm
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