Features 1 Keyless chuck finger tightens for easy bit changes 2 Available In Electric Grinder Nail Machine Engraving Machine 3 Unlimited Use In Automotives Garages Warehouses Offices Homes Etc 4 Instantly convert impact driver to hold non quick change drill and driver bits 5 Available In Electric Grinder Nail Machine Engraving MachineSpecifications Type Keyless Drill Chuck AdapterMaterial AlloyShank Size Hex ShankSize 0 3 3 6mm Hex Shank BlackPackage Included 1 x Keyless Drill Chuck Adapter