Wiha 71397 - Hex Insert Bit Metric 6 Piece Set 2.0, 2.5, 3.0, 4.0, 5.0, 6.0mm. Impact resistant modified chrome-vanadium-molybdenum, tool steel, hardened to HRC 59-61. Suitable for both manual & machine applications. Carded
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.
*Please note that the above picture is a representation of the type of tool and may not accurately represent the actual size and dimensions.
WARNING: Cancer and Reproductive Harm—www.P65Warnings.ca.gov