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8.5mm Hss-G Fully Ground Drill Bits
HSS Speed Steel Drill Bits - Fully Ground Jobbers

Suitable for 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

* 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


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