Counterbores

Lots of choices with or without interchangeable pilots.

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.

Capscrew

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

Pilots

Used to guide counterbores (spot-facers).

Interchangable - Pilot Type

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