12 X 205mm HSS-G Long Drill Bit
HSS Speed Steel Drill Bits - Long Series

For drilling deep holes in steel, cast steel, cast iron, malleable cast
iron, diecast and sintered iron, nickel silver, graphite, aluminium,
bronze, brass and hardened plastics.

* Fully-ground from hardened solid material

* Re-inforced core giving greater fracture stability

* Less tolerance and longer life than equivalent roll-forged

* 118deg split point, cross ground finish enabling:
- Direct drilling without prior centring
- Safe pilot hole even on round or slanting surface
- Less feeding power
- Better chip removal
- No jamming of the main cutting edge


Manufacturer: PROSTAR manufacturers_image