Wiha 32292 - Insulated Nut Driver 5 Piece Inch Set. Insulation According to ASTM F-1505-01, New VDE Specification 0682/part 201 and EN/IEC 60900, NFPA70E, up to 1000 Volt. Individually Tested. Blade CVM steel, hardened. Insulation molded directly onto blade. Deep drawn 1 socket. Wiha-SoftFinish handle, multi-component. Includes: 7/32, 1/4, 5/16, 3/8,1/2

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