Bits made from premium S2 alloy steel for superior hardness that reduces wear-out and ensures long-lasting tool use

High strength chrome vanadium sockets provide superior torque for greater turning power, with mirror chrome finish for corrosion resistance

4-1/4 inch long extender shaft reaches fasteners in deep, tight, hard-to-reach spaces

Precisely machined ball end ensures accurate tip size and can access fasteners From multiple angles around obstructions

Set includes a heavy duty storage tool box case and 7 pcs 3/8 in. Drive SAE hex bit sockets: 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8-inch