Foret etage DOUBLE TRANCHANT. Pour le percage des trous de diam 4 a 37 mm parfaitement ronds, sans deformation ni bavure dans tous les materiaux de faible epaisseur. Pas d'avant trou pour le percage de grands diametres, possibilite de reaffutage.
DOUBLE CUTTING EDGES HSS step drill. For the drilling of diameters from 4 to 37 mm with a perfectly round shape, without distortion neither any burr for al materials with low thickness. No pilot hole required when drilling large diameters, deburring is possible by using the next diameter step. Possible re-sharpening.
8 % cobalt- cobalto
| Capacity / Capacity | Ref ULTRA | Nb levres / Cutting edge | Lg mm / Length mm | O queue mm / Shank O mm |
| 4 - 5 - 6 - 7 - 8 - 9 10 - 11 - 12 |
2010 | 2 | 65 | 6 |
| 4-6-8-10-12-14 16-18-20 |
2011 | 2 | 75 | 8 |
| 4-6-8-10-12-14 16 - 18 - 20 - 22 - 24 - 26 - 28 - 30 |
2012 | 2 | 97 | 9 |
| 6 - 9 - 12,5 - 15,5 - 18,6 - 20,4 - 22,5 - 26 - 28,3 - 30,5 - 34 - 37 |
2013 | 3 | 98 | 10 |
5 % cobalt- cobalto
| Capacity / Capacity | Ref ULTRA | Nb levres / Cutting edge | Lg mm / Length mm | O queue mm / Shank O mm |
| 4 - 5 - 6 - 7 - 8 - 9 10 - 11 - 12 |
2015 | 2 | 65 | 6 |
| 4-6-8-10-12-14 16-18-20 |
2016 | 2 | 75 | 8 |
| 4-6-8-10-12-14 16 - 18 - 20 - 22 - 24 - 26 - 28 - 30 |
2017 | 2 | 97 | 9 |
| 6 - 9 - 12,5 - 15,5 - 18,6 - 20,4 - 22,5 - 26 - 28,3 - 30,5 - 34 - 37 |
2018 | 2 | 98 | 10 |