ITEM NAME:2-13mm heavy duty 1/20-20UNF quick change keyless drill chuck tool FT Specification: Brand new Material: carbon steel, claws of tungsten steel Color: black Size: approx. 62*43mm (H*D) Clamping range: 2-13mm Feature: Keyless chuck. Outside shell is carbon steel, claws is tungsten steel. Round handle power tool quick change. Accurate precision, reliable. Durable in use. Package included: 1pc x Keyless Drill Chuck Note: Please allow 1-5mm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same..1pc x Keyless Drill Chuck. Keyless chuck. Round handle power tool quick change. Clamping range: 2-13mm. Color: black. Durable in use.