DIN ISO 2351-2-2006 螺丝和螺母用装配工具.机器操作旋具头.第2部分:十字凹头螺钉用旋具头
Assembly tools for screws and nuts - Machine-operated screwdriver bits - Part 2: Screwdriver bits for cross-recessed head screws (ISO 2351-2:2002);English version of DIN ISO 2351-2:2006
This part of ISO 2351 prescribes the technical specifications for machine-operated screwdriver bits for cross-
recessed head screws. It applies to bits with male hexagon drive or with cylindrical flat end drive as defined in
ISO 1173, and to tips for screwdrivers as defined in ISO 8764-1.
It also gives recommended combinations between tips and bits.