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24000 Series (HSS)
High Speed Steel cutters, ideal for general holemaking applications.
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25000 Series (Cobalt)
High Speed Steel with additional Cobalt, for enhanced lifespan.
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27000 Series (TCT)
Tungsten Carbide Tipped, for the toughest materials.
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37000 Series (Rail)
Designed for the toughest rail applications.
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Metric Sizes
High performance Unibor™ annular cutters in a metric size range.
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Tapping Sizes
Designed for drilling related to tapping applications.
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Pilot Pins
Designed for use with Unibor™ annular cutters for additional tool life.

Designed and manufactured to the highest specifications, Unibor™ Annular Cutters are the backbone of holemaking across North America.