Bordo Drill Bit Bright HSS Jobber Long Series Range
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Bordo Drill Bit Bright HSS Jobber Long Series Range

TKD: VR_BORDO_2500
From $6.90-$46.50
From $6.90-$46.50
From $6.21-$41.85
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Description

BLACK FINISH (also called blue finish)

A black finish is achieved 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.

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