Wiha 26596 - PicoFinish Precision Nut Driver 8 Piece Metric Set in Pouch. Blade high alloy chrome-vanadium-molybdenum tool steel, hardened, hard chrome finish. Sizes: 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5mm
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