本标准规定了评估紧固件外花键驱动扳手系统性能的方法。本标准定义了公制花键传动紧固件外部扳手系统的设计、性能和测试要求。花键扳手应能够对六角、双六角和花键驱动紧固件施加扭矩。具有花键扳手配置的紧固件不得使用六角扳手和双六角扳手进行扳手操作。

This standard establishes the means of assessing the performance of external spline drive wrenching systems for fasteners. The standard defines the Design, Performance and Test Requirements for metric spline drive fastener external wrenching systems. The spline wrench shall be capable of torque loading hexagonal, bi-hexagonal and spline drive fasteners. Fasteners having the spline wrenching configuration shall not be capable of being wrenched with hexagonal and bi-hexagonal wrenches.