9pc. Torx 1/4" (T6, T8, T10, T15, T20, T25, T27, T30), 3/8" (T40).', 'BIT SOCKET SET: Premium S2 alloy steel machined bit construction for superior durability that reduces wear-outs and mirror chrome finish for resistance against rust, grime, and corrosion to ensure maximum longevity.', 'HEX HEAD SOCKET SET: Replaces multiple Allen wrench sets and includes commonly used Hex, Torx, E-Torx and Screwdriver Socket Bits for mechanic work or other applications.', 'STAR BIT SOCKET SET: Precisely machined hex key socket set chamfered ends for smooth bit insertion with clear size markings on the bits and storage box for quick identification and swapping of parts.', 'TORX SOCKET SET: High torque professional grade chrome vanadium steel sockets for greater torque and turning power']