GEARWRENCH bit sockets have heat treated alloy steel base sockets and S2 steel bits for durability and long tool life. Our triple square bit sockets help users loosen & tighten internal triple square fasteners frequently found on European brand vehicles. The 4 piece 3/8" and 1/2" drive triple square bit socket set comes with a socket rail for storage and organization and includes sizes 6mm, 8mm, 10mm, and 12mm.
- Bits made of S2 steel for strength and durability
- Heat treated for maximum durability
- Hard stamped size markings