Professional tool for commercial or occasional use 3/8" drive torx star sockets Torx plus sockets - this is the new variant now used by many vehicle manufacturers (they will fit normal torx bits as well) 3/8" drive so will fit any 3/8" drive ratchet / power bar Manufactured from chrome vanadium steel for strength and durability S2 steel for added strength Comes on a socket rail for easy storage and transportation SET INCLUDES THE FOLLOWING SIZES - TP10 / TP15 / TP20 / TP25 / TP27 / TP30 / TP40 / TP45 and TP50 Total length of the torx bits 50mm