Specifications Confirm to : IS 5446 – 1978, BS 328 Part : 1983.
Product Specification
| Diameter (in mm) | Diameter (in Inches) | Cutting Edge Length | Overall Length | Dia in Shank |
| 6.0 | 26 | 93 | 5.6 | |
| 1/4 | 6.3 | 22 | 90 | 5.0 |
| 7.0 | 9/32 | 31 | 109 | 7.1 |
| 8.0 | 5/16 | 33 | 117 | 8.0 |
| 9.0 | 11/32 | 36 | 125 | 9.0 |
| 10.0 | 3/8 | 38 | 133 | 10.0 |
| 11.0 | 7/16 | 41 | 142 | 10.0 |
| 12.0 | 15/32 | 44 | 151 | 10.0 |
| 13.0 | 1/2 | 44 | 151 | 10.0 |
| 14.0 | — | 47 | 160 | 12.5 |
| 15.0 | 9/16 | 50 | 162 | 12.5 |
| 16.0 | 5/8 | 52 | 170 | 12.5 |
| 17.0 | — | 54 | 175 | 14.0 |
| 18.0 | — | 56 | 182 | 14.0 |
| 19.0 | — | 58 | 189 | 16.0 |
| 20.0 | — | 60 | 195 | 16.0 |