Metric (1.0mm -7.4mm) HSS Black Knight Jobber Drill 10pk - Bulk (click for size options)
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Original price
$53.40
Original price
$39.30
-
Original price
$128.70
Original price
$53.40
Current price
$25.65
$18.90
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$61.80
Current price
$25.65
- Bordo Black Knight M2-HSS Twist Drills.
- DIN338
- 118º Split Point (crankshaft point)
- Split point is self centering and reduces the need for end thrust.
- Friction at workpiece is reduced.
- 118º point angles are ideal for use in materials such as mild steel and cast iron.
- The 118º point creates easily controlled chips which are wide and thin.
- Black Finish Twist Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating.
- This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life.
- Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.