NA 121
DIN Standards Committee Tools and Clamping Devices
Standards
[Withdrawn]
DIN 373
DIN 373
Counterbores with parallel shank and solid pilot
Title (German)
Flachsenker mit Zylinderschaft und festem Führungszapfen
Responsible national committee
NA 121-01-03 AA - Countersinks, core drills and reamers of high-speed steel and hard metal tips