TEKTON 3/8-Inch Drive Hex Bit Socket Set, Inch, 1/8-Inch - 3/8-Inch, 9-Sockets | 1361 Hardened carbon steel sockets with corrosion-resistant chrome plated finish High-strength chrome vanadium steel bits Precisely-sized, chamfered ends insert smoothly into fastener head, reducing wear Notched drive end locks onto drive tang to prevent sticking in fastener or being dropped Use with any 3/8 in. drive ratchet or extension