This standard specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of Z-shaped slotted screwdrivers. This standard applies to hand-use Z-shaped slotted screwdrivers (hereinafter referred to as "screwdrivers"). This standard does not apply to Z-shaped slotted screwdrivers for live work.
QB/T 2564.11-2015 history
2015QB/T 2564.11-2015 Screwdrivers.Double offset screwdrivers for slotted-head screws