The bits is made of S2 steel, which is precisely and automatically machined to ensure accurate size. Tamper Proof Torx Bits: T8, T9, T10, T15, T20, T25, T27, T30, T40, T45, T50, T55. Torx Star Bits: T8, T10, T15, T20, T25, T27, T30, T40, T45, T47, T50, T55, T60.
