ITEM NAME:0.8-10mm Keyless Drill Chuck Converter 3/8" 24UNF Best Nj Feature: -100% new and high quality. -Unique patented locking function, breaking the traditional locking methods. -After having ratchet, the locking pieces mounted on the rear sleeve, the locking peripheral length, more effective in preventing the removal work loose, the collet is more reliable when the gripping means. -Good metal texture, comfortable coat surface. -Torque thrust bearing unique easy-grip exerted translate into greater clamping force. -Scope: Suitable for power 1050W more impact drill. Specifications: Product name: Drill Chuck Material: High-speed steel Color: Black and silver Length: Approx. 85mm/3.34" Shank Diameter: Approx. 6mm/0.23" Clamping range: 0.8-10mm/0.031"-0.39" Package Include:.1x Drill Chuck. -Scope: Suitable for power 1050W more impact drill. Length: Approx. 85mm/3.34". Color: Black and silver. Material: High-speed steel.