Value Collection 08908642 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08908642 is a counterbore pilot used to guide counterbore cutters during precision boring operations on metal workpieces. With a 1 inch head diameter and a 7/16 inch shank diameter, this pilot fits into pre-drilled holes to center and stabilize the counterbore tool during cutting. It is manufactured from carbon steel with a bright, uncoated finish. Machinists and tool-and-die professionals use this pilot in drill press, milling, and manual boring setups where accurate counterbore alignment is required to produce clean, flat-bottomed recesses for fastener seating.

This counterbore pilot is suited for general metalworking applications in both production shop and maintenance environments. It is used when counterboring operations require a dedicated pilot to maintain concentricity with an existing pilot hole. The 7/16 inch shank seats into the counterbore tool body, and the 1 inch head diameter sets the bore guidance diameter. Typical applications include preparing bolt-hole seats in steel plate, machinery frames, and structural components where fastener heads must sit flush or recessed.

Key Features

• 1 inch head diameter for consistent bore guidance
• 7/16 inch shank diameter for secure tool body seating
• Carbon steel construction for durability in general metalworking use
• Bright, uncoated finish for dimensional consistency out of the package
• Sold individually — one pilot per package

Compatibility

Designed as a standard replacement or spare counterbore pilot for use with compatible counterbore cutter sets requiring a 7/16 inch shank and 1 inch head diameter pilot. Verify pilot shank and head dimensions against the counterbore tool body before installation.

Installation Notes

Installation is performed by machinists or toolroom technicians familiar with counterboring operations. Ensure the machine spindle is fully stopped and locked out before inserting or removing the pilot from the counterbore body. Confirm the pilot shank seats fully and is secured per the tool manufacturer's holding method before initiating a cut. Inspect the pilot for wear or damage before each use, as a worn pilot can result in off-center bores.