This fantastic quality set contains 32 Chrome Vanadium Steel Torx-Star Bits each with a 1/2" square drive for any 1/2" square drive ratchet. The full set contains the following sizes - T20, T25, T27, T30, T40, T45, T50, T55, T60 & T70 - fitted with drive shaft lengths at 55mm 100mm 140mm & 200mm for excellent access whatever the location (T20 T25 T27 & T30 bits are only available with 55mm & 100mm shaft lengths). Torx Star bits for Torx fasteners. Torx is the registered trademark for Camcor / Textron Inc. Contents includes: 10 x 55mm long bit sockets (T20 to T70) - 10 x 100mm long bit sockets (T20 to T70) - 6 x 140mm long bit sockets (T40 to T70) - 6 x 200mm long bit sockets (T40 to T70). .