| CODE | DESCRIPTION | SIZE |
| S50144 | STEPPED DRILL9 STEPS | 4,0 - 5,0 - 6,0 - 7,0 - 8,0 -9,0 - 10,0 - 11,0 - 12,0 |
| S50145 | STEPPED DRILL 9 STEPS | 4,0 - 6,0 - 8,0 - 10,0 -12,0 - 14,0 - 16,0 -18,0 - 20,0 |
| S50146 | STEPPED DRILL 13 STEPS | 6,0 - 8,0 - 10,0 - 12,0 -14,0 - 16,0 - 18,0 - 20,0 -22,0 - 24,0 - 26,0 -28,0 - 30,0 |