Wiha 36288 - Torx Screwdriver with SoftFinish Handle T45 X 130mm. Round blade high alloy chrome-vanadium-molybdenum steel, hardened, hard chromed. Wiha-Chromtop finish on tips. Wiha-SoftFinish handle, multi-component, cushion grips.
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.