GB/T 4258-1984
Countersinks with parallel shanks for angles 60 degree,90 degree and 120 degree inclusive
2004-08
- Standard No.
- GB/T 4258-1984
- Language
- Chinese
- Release Date
- 1984
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
- GB/T 4258-2004
- Lastest
- GB/T 4258-2004
- Scope
- 60°, 90°, 120° Straight Shank Tapered Countersink Drills
GB/T 4258-1984 history
- 2004 GB/T 4258-2004 Parallel shanks countersinks for angtles 60°、90°and 120°inclusive
- 1984 GB/T 4258-1984 Countersinks with parallel shanks for angles 60 degree,90 degree and 120 degree inclusive