This standard specifies the code representation rules and symbols for carbide outer surface turning tools and inner surface turning tools specified in GB/T 17985.2 and GB/T 17985.3. This standard is applicable to the code representation of the outer surface turning tools and inner surface turning tools of cemented carbide with metric dimensions.
GB/T 17985.1-2000 history
2000GB/T 17985.1-2000 Turning tools with carbide tips Part 1:Designation and marking