标准号:ISO 10898-1992
中文标准名称:定心钻
英文标准名称:Spot drills
标准类型:J54
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:J54
国际标准分类号:25.100.30
适用范围:Specifies the dimensions and other technical parameters of spot drills of high-speed steel and hardmetal with point angle of 90?or 120? Applies to diameters from 4 mm to 20 mm.