DW0521 3/8 inch Drill Chuck Adapter Impact Drivers, for DeWalt Drill Chuck Adapter 1.5-13mm Capacity, 1/4 inch Hex Shank Quick Connect Impact Driver Conversion Chuck Easily conversion from fastening to drilling This Diameter In 3/8" Impact Drill Bit Keyless Chuck Adapter, Fitting Variety Drill For Multiple Tasks,The universal three jaw design can firmly accommodate drill bits of various sizes Included Components: Drill Chuck Impact Drive, Chuck Key, 1/4 Inch Hex Shank (1 PCS) Drill Chuck Adapter Made of chrome vanadium steel material, it is durable. Whether it is home decoration, woodworking or professional industrial construction, it can be easily handled, greatly improving your work efficiency and saving you time and energy