AT3 standard Large size boring bar
Feature:
1. No taper shank in conformity with AT3 Standard
2. Straight set is in conformity with tolerance h6
3. Entire center cooling is good for thorough coolant and antivibration.

Technical specification:
| Model No. | Diameter | Length 1 | Length |
| MG70 | 95 | 146.4 | 70 |
| MG100 | 212.8 | 100 | |
| MG150 | 262.8 | 150 | |
| MG200 | 312.8 | 200 | |
| MG250 | 362.8 | 250 | |
| MG300 | 412.8 | 300 | |
| MG350 | 462.8 | 350 | |
| MG400 | 512.8 | 400 |
