ITEM NAME:0.3-6.5mm keyless chuck quick change adapter brick rotary tools drill bit S Ew Features: †¢ 100% quality and Brand new †¢ Easy to use and install †¢ Conveniently, safely & quickly †¢ Easily locks onto and releases drill bits †¢ Allows hex drive power tools to use conventional drill bits Specification: Color: Silver,Black Professional Quality 1/4 "Keyless Chuck 6.35mm Convert 1/4 "Hex Shank Screwdriver into a Drill It will Hold Drill Bits and Accessories up to 1.4 "in Diameter Use This Chuck to Convert Any cordless Screwdriver into a drill or grinder Driver Shank is 1/4 "Hex Drill Chuck Dia: 0.3-6.5mm Package included:.Convert 1/4 "Hex Shank Screwdriver into a Drill. 1/4 "Keyless Chuck 6.35mm. Use This Chuck to Convert Any cordless Screwdriver into a drill or grinder. 1 1/4 "Hex Shank Drill. Drill Chuck Dia: 0.3-6.5mm.