NA 121
DIN Standards Committee Tools and Clamping Devices
Standards
[Withdrawn]
DIN 222
DIN 222
Shell counterbores - Design worksheets
Title (German)
Aufsteck-Senker - Konstruktionsblatt
Responsible national committee
NA 121-01-03 AA - Countersinks, core drills and reamers of high-speed steel and hard metal tips