DESCRIPTION 1/2 Inch Drive Insert Star-Plus Bit Socket Sockets: Double surface, knurled Chrome Vanadium Steel. Bits: S2 Steel with zinc phosphate. Tempering process for hardening. Provides enhanced torque distribution and a snug fit for reducing wear. Ensures secure and stable fastening in high-stress applications. Commonly used in assembling or repairing high-performance machines, especially for aerospace, automotive, and industrial tasks. MORE PRODUCTS More 1/2" DRIVE BIT SOCKET More BIT SOCKET