ITEM NAME:Drill Set Allen Wrench Adapter Sleeve 1/4 3/8 1/2 Inch Impact Driver Tools Descriptio n Descriptions: â— Â Â Â Â 100% Brand New and High Quality. â— Â Â Â Â Compact and easy to carry. â— Â Â Â Â Made of super strong heat treated steel. â— Â Â Â Â Stainless steel locking ball ensures secure fit, won't slip off. â— Â Â Â Â Prevents stripping during high speed drill operation. â— Â Â Â Â Applies to the screwdriver handle or electric screwdriver tools (eg. hexagonal hole or three jaw chuck ). â— Â Â Â Â Can be used to install the sleeve , a good convert accessories. Features: Model Number: Socket Adapter Hex Shank Set Material: Steel Size:50mm(Length) Package includes: 1 x Socket Adapter Hex Shank Set (3 PCS) Socket Adapter Drill BIts Set Hex Shank Impact Driver.â— Applies to the screwdriver handle or electric screwdriver tools (eg. hexagonal hole or three jaw chuck ). â— Can be used to install the sleeve, a good convert accessories. Socket Adapter Drill BIts Set Hex Shank Impact Driver.