Wiha 26794 - Precision Pentalobe Screwdriver 6 Piece Set. Blade high alloy chrome-vanadium-molybdenum tool steel, hardened, hard chrome finish. Includes: P1, P2, P3, P4, P5, P6 for working on Apple products such as iPhone, iPad, and MacBook
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