Description: 13 piece set is made in the U.S.A. TORX® bit sockets feature SK's high polish SuperKrome finish, which provides for long life and maximum corrosion resistance. Through-hole design makes it easier to replace worn or broken bits: simply pop the old bit out and insert a new replacement bit. The new bit holder design is 9 times stronger and helps prevent the bit from slipping out of the socket while working. Bits are manufactured to rigid standards using high strength S2 steel. TORX® fasteners are increasingly popular on today's vehicles. Set Contents: 1/4" Drive TORX® Bit Sockets - T8, T10, T15, T20, T25, T27, T30; 3/8" Drive TORX® Bit Sockets - T40, T45, T47, T50, T55; 1/2" Drive TORX® Bit Socket - T60