Wiha 15315 - Square-Handle Screwdriver Phillips #1 x 200mm. Blade chrome-vanadium-molybdenum steel, hardened, nickel-plated. Tip parallel to shaft. Series includes extra long dimensions for screws in difficult to reach locations. Wiha-square handle cellulose-acetate, impact resistant.
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