Professional impact torx bit sockets for commercial or occasional use Stubby industrial impact torx bit sockets Male torx / Star bits US Pro Industrial (brand) this is the more industrial brand of both Bergen and US Pro Manufactured form chrome molybdenum steel for strength and durability Stubby torx bits perfect for access into restricted hard to reach areas Impact torx bits 1/4" and 3/8” drive torx bits so will fit any 1/4"or 3/8” drive Torx bits SET INLCUDES THE FOLLOWING SIZES • 1/4" Drive Torx Bits – T10, T15, T20, T25, T27 and T30 • 3/8” Drive Torx bits – T40, T45, T47 and T50 Comes on a socket rail for easy storage and transportation