NA 121
DIN Standards Committee Tools and Clamping Devices
Standards
[CURRENT]
ISO 521
ISO 521
Machine chucking reamers with cylindrical shanks and Morse taper shanks
Title (German)
Maschinen-Reibahlen mit Zylinderschaft oder Morsekegelschaft
Responsible national committee
NA 121-01-03 AA - Countersinks, core drills and reamers of high-speed steel and hard metal tips