Þrepaborasett, Titanium húðaðir borar

– 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 mm
4 – 20 mm in following steps: 4, 6, 8, 10, 12, 14, 16, 18, 20 mm
4 – 30 mm in following steps: 4, 6, 8, 10, 12, 14, 16, 18,
                                               20, 22, 24, 26, 28, 30 mm