Wiha MagicRing 22 Piece Allen Wrench Set

Blade chrome-vanadium-molybdenum steel, hardened, hard chrome finish. CVM or chrome-vanadium-molybdenum steel is a special, high strength, high performance alloy. 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.