NA 121
DIN Standards Committee Tools and Clamping Devices
DIN 20377 [CURRENT] referenced in following documents:
| Document number | Edition | Title |
|---|---|---|
| DIN 20361 | 2010-04 | Rock drilling - Chuck bushings - Connecting dimensions, material, design More |
| DIN 20379-1 | 2011-05 | Rock drilling - Part 1: Tapered bits for percussive flush drilling More |
| DIN 20379-2 | 2011-05 | Rock drilling - Part 2: Bits with internal thread for percussive flush drilling More |
