Value Collection 08909368 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08909368 is a counterbore pilot used to guide counterboring tools during precision machining and fastener seating operations. With a 9/16 inch head diameter and a 1/2 inch shank diameter, this pilot locates the counterbore cutter concentrically over a pre-drilled hole, ensuring accurate depth and alignment. Constructed from carbon steel with a bright, uncoated finish, it delivers adequate hardness for general-purpose metalworking and fabrication tasks. Machinists, tool and die workers, and maintenance technicians use counterbore pilots when preparing bolt or cap screw seats in metal components.

This counterbore pilot is suited for use in machine shops, manufacturing facilities, and industrial maintenance environments where counterbored holes are required for socket head cap screws or similar fasteners. It fits into standard counterbore tool bodies that accept a 1/2 inch shank pilot and pairs with a cutter sized for a 9/16 inch head diameter. Typical applications include preparing mounting surfaces in steel plate, structural components, and equipment housings where flush or recessed fastener installation is required.

Key Features

• 9/16 inch head diameter for accurate cutter alignment on standard counterbore sizes
• 1/2 inch shank diameter for secure seating in compatible counterbore tool bodies
• Carbon steel construction provides durability for general metalworking applications
• Bright, uncoated finish allows visual inspection of pilot condition before use
• Lightweight at 0.19 pounds, easy to handle and swap during tool changes

Compatibility

Designed as a replacement or spare counterbore pilot for standard counterbore tool bodies that accept a 1/2 inch shank diameter pilot with a 9/16 inch head diameter.

Installation Notes

Installation is performed by qualified machinists or maintenance technicians. Ensure the machine spindle is fully stopped and power is disconnected before inserting or removing the pilot from the counterbore tool body. Verify that the pilot shank fits securely and without play in the counterbore body before initiating a cut. Follow applicable shop safety standards and manufacturer guidelines for speeds and feeds when operating counterboring tools.