Package : 6 X Socket Converter (25mm*3+30mm*3) Package : 6 X Socket Converter (25mm*3+30mm*3) Size: 1/4" Square Drive to 1/4" Hex Adaptor 5.2mm Square Drive to 1/4" Hex Adaptor Material: High Quality Chrome Vandium Steel Bushing, And Long Life.High Hardness And High Torque. Applicable: Adapter For Converting The Socket Into A Screw Driver Bit Function: 1/4 "Square Drive To 1/4" Hex Adaptor Socket Screwdriver Bits Converter