NA 121
DIN Standards Committee Tools and Clamping Devices
Draft standard
[Withdrawn]
DIN 6442
DIN 6442
Wood bits - mortise bit (twisted version)
Title (German)
Holzbohrer - Langlochfräsbohrer (drallgenutet)
Responsible national committee
NA 121-01-05 AA - Drilling tools for wood, stone and concrete