RUKO 101026 Step Drill Bit HSS SP in Steel Plate
- Completely in high-alloyed tool high-speed steel..
- Split point on the tip ensures well-centred drilling and lower required feed rate..
- The deep cut and spiral-shaped flute ensures absolute smoothness and top cutting performance..
- Particularly strong swarf is carried cleanly out of the bore as with a spiral drill. This lessens the build up of structural cuts and galling in the bore..
- The cone makes pulling back from the bore easier..