Counterbores with taper shank is a cutter with teeth on the periphery and end. Integral with a taper shank for holding and driving, and having a pilot which may be fixed or detachable.
Dimensions in mm
(They can also be manufactured as per US and EU standard sizes and specifications)
| Size | Cutting Edge Length | Overall Length Excluding Pilot | Morse Taper no. | Pilot Inches |
|---|---|---|---|---|
| 13.5 | 20 | 130 | 2 | 5 to 14 |
| 14.5 | 20 | 130 | 2 | 5 to 14 |
| 16.5 | 25 | 140 | 2 | 6.3 to 18 |
| 17.5 | 25 | 140 | 2 | 6.3 to 18 |
| 19.5 | 25 | 140 | 2 | 6.3 to 18 |
| 20.0 | 25 | 150 | 2 | 8 to 22.4 |
| 22.0 | 30 | 150 | 2 | 8 to 22.4 |
| 23.0 | 30 | 150 | 2 | 8 to 22.4 |
| 25.0 | 30 | 150 | 2 | 8 to 22.4 |
| 26.0 | 35 | 180 | 3 | 10 to 28 |
| 28.0 | 35 | 180 | 3 | 10 to 28 |
| 29.0 | 35 | 180 | 3 | 10 to 28 |
| 31.0 | 35 | 180 | 3 | 10 to 28 |
| 33.0 | 40 | 190 | 3 | 12.5 to 35.5 |
| 34.0 | 40 | 190 | 3 | 12.5 to 35.5 |
| 36.0 | 40 | 190 | 3 | 12.5 to 35.5 |
| 37.0 | 40 | 190 | 3 | 12.5 to 35.5 |
| 39.0 | 40 | 190 | 3 | 12.5 to 35.5 |
| 41.0 | 46 | 225 | 4 | 16 to 45 |
| 43.0 | 46 | 225 | 4 | 16 to 45 |
| 46.0 | 46 | 225 | 4 | 16 to 45 |
| 48.0 | 46 | 225 | 4 | 16 to 45 |
| 51.0 | 54 | 240 | 4 | 20 to 58 |
| 53.0 | 54 | 240 | 4 | 20 to 58 |
| 55.0 | 54 | 240 | 4 | 20 to 58 |
| 57.0 | 54 | 240 | 4 | 20 to 58 |
| 59.0 | 54 | 240 | 4 | 20 to 58 |
| 61.0 | 54 | 240 | 4 | 20 to 58 |