Cleveland C46439 Interchangeable Pilot Counterbore

The Cleveland C46439 Interchangeable Pilot Counterbore is a replaceable-pilot cutting tool designed for counterboring operations, enabling a flat-bottom recess for fastener seating. It features a 1/2" diameter cutting head and an overall length of 5-3/8", with the body carrying the Cleveland model number C46439. The interchangeable pilot design allows swapping pilots to match different hole sizes without replacing the entire counterbore body, supporting quick setup changes in metalworking tasks. This tool is identified by the Cleveland brand and model number, and is used where precise counterboring provides clean seating for fasteners in drilled holes.