KS TOOLS 918.1678 1/2" CHROME + Bi hex socket, deep, 12mm

The Item Package Dimensions Length: 13.7795"L The Item Package Dimensions width: 9.84252"W The dovetail design provides an exceptionally strong connection and allows for complete head interchange-ability across the full spectrum of torque ranges 1/2" CHROMEplus 12 Point socket deep 12mm All of SK's interchangeable heads are made from a single piece of alloy steel