ISO 237-1975 直柄回转刀具 柄直径和传动方头的尺寸

标准号：ISO 237-1975
中文标准名称：直柄回转刀具 柄直径和传动方头的尺寸
英文标准名称：Rotating tools with parallel shanks; Diameters of shanks and sizes of driving squares
标准类型：J52
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：J52
国际标准分类号：25.060.20
适用范围：Applies to reamers, screwing taps, etc. It comprise two series of dimensions. The complete range of diameters is divided into a certain number of diameter steps. In the metric tables, the values of the across flats of the squares and the preferred diameters are scaled in accordance with the R20 series of preferred numbers. In the inch tables, these values are exact conversions of the corresponding metric values.