Inverded Cone(shape N)

| Item No. | Cutter Diameter | Length of Cut | Shank Diameter | Overall Length | α |
| N0304M06 | 3 | 4 | 6 | 55 | 10° |
| N0607M06 | 6 | 7 | 6 | 65 | 10° |
| N0810M06 | 8 | 10 | 6 | 65 | 10° |
| N1010M06 | 10 | 10 | 6 | 65 | 20° |
| N1213M06 | 12 | 13 | 6 | 65 | 20° |
| N1616M06 | 16 | 16 | 6 | 65 | 20° |

| Item No. | Cutter Diameter | Length of Cut | Shank Diameter | Overall Length | α |
| N0304M06 | 3 | 4 | 6 | 55 | 10° |
| N0607M06 | 6 | 7 | 6 | 65 | 10° |
| N0810M06 | 8 | 10 | 6 | 65 | 10° |
| N1010M06 | 10 | 10 | 6 | 65 | 20° |
| N1213M06 | 12 | 13 | 6 | 65 | 20° |
| N1616M06 | 16 | 16 | 6 | 65 | 20° |