- 4 piece metric drill bit set
- HSS can withstand higher operating temperatures
- Grounded twice with black finish.
- Surface aids chip flow and heat dissipation.
- Includes 4 sizes
- Presented in a hard injected moulded case
| WHAT YOU GET: |
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Bordo 4 Piece Reduced Shank Drill Bit Set includes:
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1 x 16mm 1/2″ Reduced Shank Drill
1 x 18mm 1/2″ Reduced Shank Drill
1 x 22mm 1/2″ Reduced Shank Drill
1 x 25mm 1/2″ Reduced Shank Drill
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| Presented in a hard injected moulded case |
| FEATURES: |
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Bordo HSS reduced shank drill bits are ground from premium quality M2 high speed steel. HSS can withstand higher operating temperatures than carbon steel without losing its temper (hardness).
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118° notched point 30° helix. Notched point provides faster starting and reduced drill wander.
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Grounded twice with black finish.
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Surface aids chip flow and heat dissipation.
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Bordo reduced shank HSS drills are ground and then a black finish is achieved by steam tempering, a thermal process resulting in a porous tool coating. This surface aids chip flow and heat dissipation. The drill is then ground a second time to achieve a bright finish on the shank and cutting edges.
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