ITEM NAME:3PCS Drill Socket Adaptor Hex Drive To 1/4" 3/8" 1/2" Impact Drill BIts Driver We will arrange.3pcs Set Socket Adapter Hex Shank to 1/4" 3/8" 1/2" Impact Drill Bits. (1/4" hex shank to 1/4" socket) Socket Adapter, Length: 65mm. (1/4" hex shank to 3/8" socket) Socket Adapter, Length: 65.8mm. (1/4" hex shank to 1/2" socket) Socket Adapter, Length: 68mm.