GB/T 4247-2004
Machine bridge reamers with Morse taper shanks
2018-07
- Standard No.
- GB/T 4247-2004
- Language
- Chinese
- Release Date
- 2004
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
- GB/T 4247-2017
- Lastest
- GB/T 4247-2017
- Scope
- This standard specifies the characteristics of Morse taper machine bridge reamers. This standard gives the following dimensions in millimeters and inches for bridge reamers with diameters d ranging from 6 mm to 50,8 mm (0.236 2 in to 2,000 0 in). - total length L; - total cutting edge length ι; - conical cutting edge length ι1. At the same time, the Morse taper shank number of each diameter segment is given, and the size of the Morse taper shank is in accordance with the provisions of GB/T 1443.
GB/T 4247-2004 history
- 2017 GB/T 4247-2017 Machine bridge reamers with Morse taper shanks
- 2004 GB/T 4247-2004 Machine bridge reamers with Morse taper shanks
- 1984 GB/T 4247-1984 Machine bridge reamers with Morse taper shanks