Wiha 36494 - 8 Piece T-Handle Torx Set in Metal Stand T9, T10, T15, T20, T25, T27, T30, T40. All blades 4" long.
High alloy chrome-vanadium-molybdenum steel, hardened, black finish.
CVM or Chrome-Vanadium-Molybdenum steel is a special, high strength, high performance alloy. Chromium improves wear resistance, hardness and corrosion resistance. Vanadium also improves the grain structure for a tougher tool. Molybdenum improves impact resistance as well as increases tensile strength and elasticity to prevent tool breakage and snapping.
WARNING: Cancer and Reproductive Harm—www.P65Warnings.ca.gov