Wiha 13666 - Insulated Inch Hex L-Key 3/16 x 140. Insulation According to IEC 60900 specification, up to 1000 Volt. Individually Tested. Blade chrome-vanadium steel, hardened.
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