Counterbores

Lots of choices with or without interchangeable pilots.

Interchangable - Pilot Type

Used to recess – or spot-face – the head of a fastener or cap-screw. Interchangeable pilot.

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Aircraft - Pilot Type

Used to recess – or spot-face – the head of a fastener or cap-screw. Available with 1/4 or 1/2 shank and interchangeable pilots.

Most popular:

Capscrew

For recessing the head of a cap-screw; pilot is integral to the tool.

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Pilots

Used to guide counterbores (spot-facers).

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