TiALN-Pinnoitettu askelporasarja. Sopii myös ruostumattomalle teräkselle 6-30mm x 2mm nousulla 4-20mm x 2mm nousulla 4-12mm x 1mm nousulla
- HSS-steel- little abrasion - longer life- 2 mm ascending steps- 3 cutters:4 - 12 mm in following steps: 4, 5, 6, 7, 8, 9, 10, 11, 12 mm4 - 20 mm in following steps: 4, 6, 8, 10, 12, 14, 16, 18, 20 mm4 - 30 mm in following steps: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 mm