This standard specifies the product classification and requirements for slotted screwdrivers. This standard applies to slotted screwdrivers, but does not include slotted screwdrivers for live work.
QB/T 2564.4-2002 history
2012QB/T 2564.4-2012 Screwdrivers.Screwdriver for slotted head screws
2002QB/T 2564.4-2002 Screwdrivers-Screwdriver for slotted head screws