第二版取消并取代第一版（即ISO 2423:1974）。描述了这些通用和普通精密径向钻床的几何和实际测试，并给出了适用的相应允许偏差。仅涉及机器精度的验证。不适用于机器运行测试（振动、异常噪音、部件的粘滑运动等）或特性测试（速度、进给等），通常应在测试精度之前进行检查。

This second edition cancels and replaces the first edition (i. e. ISO 2423 : 1974). Describes both geometrical and pratical tests on these general purpose and normal accurasy radial drilling machines, and gives the corresponding permissible deviations which apply. Deals only with the verification of the accuracy of the machine. Does not apply to the testing of the running of the machine (vibrations, abnormal noises, stick-slip motion of components, etc.), or the characteristics (speeds, feeds, etc.), which shall generally be checked before the accurasy is tested.