Spiralbor 9,0x250mm HSS-G DIN 1869

Powerful standard drill bit for deepest drilling holes
- Precise point grinding
- Pointed chisel edge = Reduction of feeding force and torque
- For drilling into solid material
- For drilling deep drill holes
- Designed to drill: Teel up to 1.000 N/mm²,cast iron, mealleable cast,iron,sintered iron, graphite,tough brass,aluminium short chipping, etc.
- Long tool life thanks to frequent chip removal and permanent cooling
- Cutting terms (cutting speed and feed motion) have to match the stability of the drill bit
- No drilling in oil filled crank axles