Set Kit 40 pieces TORX HEX SPLINE BitsA set of 40 bits Made from chrome vanadium steel TORX - 30 mm - T20 T25 T30 T40 T45 T50 T55- 75 mm - T20 T25 T30 T40 T45 T50 T55HEX - 30 mm - H4 H5 H6 H7 H8 H10 H12 (4-5-6-7-8-10-12 mm)- 75 mm - H4 H5 H6 H7 H8 H10 H12 (4-5-6-7-8-10-12 mm)SPLINE- 30 mm - M5 M6 M8 M10 M12- 75 mm - M5 M6 M8 M10 M12Includes 2 adapters for 3/8" & 1/2" Drive -Multi-tooth-T-profile-Allen