Description: 2-13mm Keyless Impact Drill Chuck for Electric Hammer Drill Tool Accessories Specification: Material carbon steel; claws of tungsten steel Clamping range 2-13MM Size 65mm * 42mm(Height * diameter) Mount 1\/2-20UNF Features: Outside shell is carbon steel, claws is tungsten steel. Durable and long service life. Package Included: 1 x Drill Chuck More Details: