NA 121
DIN Standards Committee Tools and Clamping Devices
Standards
[Withdrawn]
DIN 311
DIN 311
Machine bridge reamers with morse taper
Title (German)
Nietlochreibahlen mit Morsekegelschaft
Responsible national committee
NA 121-01-03 AA - Countersinks, core drills and reamers of high-speed steel and hard metal tips