Silverline T10 T40 Socket Set 1/4" & 3/8" Drive 7pce

Amazon

Trx sockets Chrome-vanadium-steel Chrome vanadium sockets with hardened and tempered trx bits 38 drive: t27, t30 and t40 Hardened and tempered Four corner drive 14 drive: t10, t15, t20 and t25, Weight: 0.21 pounds, Manufacturer: SLTL4

Electrical World

Hardened and tempered Trx bits with satin finish, mounted in polished chrome vanadium square drive socket. Contents: 1/4" drive T10, T15, T20, T25 and 3/8" drive, T27, T30 and T40.