| DIMENSIONAL TOLERANCE: | |
| Dimension (mm) | Tolerance (mm) |
| Upto 25 | ± 0.125 |
| 25-50 | ± 0.25 |
| 50-75 | ± 0.375 |
| 75-100 | ± 0.5 |
| 100-150 | ± 0.75 |
| 150-200 | ± 1 |
| 200-250 | ± 1.25 |
| 250-300 | ± 1.5 |
| FLATNESS: | ||
| Dimg Range | As CAST (mm) | Mechanical Straightened (mm) |
| Upto 25 mm | 0.15 | 0.1 |
| 50 | 0.2 | 0.15 |
| 75 | 0.3 | 0.2 |
| 100 | 0.4 | 0.25 |
| 150 | 0.55 | 0.4 |
| 200 | 0.9 | 0.7 |
| CONCENTRICITY: | |
| Dimension (mm) | Tolerance (mm) |
| 25 | 0.15 |
| 50 | 0.4 |
| 75 | 0.5 |
| 100 | 0.75 |
| 150 | 0.9 |
| 200 | 1 |
| ANGLE : | |
| ± 1/2 ° in general |
| CAST HOLES: | |
| ± 1/2 Through Holes L =5*D | |
| Blind Holes L = 2*D | |
| where L is length of hole and D is diameter |
| SURFACE FINISH : | |
| 3.2 TO 6 RA. |