3PCS Socket Bits Adapter Set Hex Shank Impact Drill Driver Bar Wrench Extension
Quantity: 3pcs. 1/4" hex shank to 1/4" socket---- 1/4 " shank can be converted to 1/4" (6.35mm) square head. 1/4" hex shank to 3/8" socket----- 1/4 " shank can be converted to 3/8" (9.53mm) square head.