GB/T 4390-2008
ActiveWrench openings - Tolerances for general use
扳手开口和扳手孔 常用公差
Application Summary AI generated
This standard specifies the dimensional tolerances for the openings and holes of wrenches intended for general use, ensuring consistent fit and reliable torque transmission between the wrench and fastener. It is applied in the manufacturing and quality inspection of hand tools, particularly for production and procurement specifications in the hardware and mechanical assembly industries.
Related Standards
GB/T 4440-2008
Adjustable wrenches
GB/T 6374-2004
Shanks for rock drilling machines and pneumatic tools and fitting dimensions of chuck bushings
GB/T 4706.79-2005
Safety of household and similar electrical appliances Part 2:Particular requirements for hand-held mains-operated garden blowers,vacuums and blower vacuums
GB/T 19636-2005
Saw tables for use as saw benches Tables for hand-held circular saws with a maximum saw-blade diameter of 315mm Safety requirements
GB/T 4706.78-2005
Safety of household and similar electrical appliances Part2:Particular requirements for pedestrian controlled mains-operated lawnmowers
GB/T 13960.13-2005
Safety of transportable motor-operated electric tool-Part2:Particular requirements for combined mitre-bench saws
GB/T 5806-2003
Files--General technical requirements
GB/T 10635-2003
Screwdrivers--General technical requirements
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.