The Metallurgy of Micro-Bits: CRM-72 vs. Chrome Vanadium
When dealing with microscopic Torx or pentalobe screws on expensive circuit boards, soft metal bits will strip easily, ruining the screw head. The industrial-grade Wiha System 4 ESD tackles this risk by forging its micro-bits out of premium CRM-72 tool steel, hardened through strict heat cycles to lock their geometric profiles.