标准摘要
[中文适用范围]： 本文件规定了长系列工作长度的圆柱柄麻花钻的尺寸。 ISO 235 中给出了圆柱柄钻头和短柄系列钻头以及莫氏锥柄钻头。 [外文原描述]： ISO 494:2017 specifies the dimensions of cylindrical shank twist drills having working lengths in the long series. The cylindrical shank jobber and stub series drills and Morse taper shank drills are given in ISO 235.
英文名称Cylindrical shank twist drills — Long series