Value Collection 08904203 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08904203 is a counterbore pilot used to guide counterbore cutters during precision boring operations. It features a 5/16 inch head diameter and a 3/16 inch shank diameter, machined from carbon steel with a bright uncoated finish. Counterbore pilots center the cutter over a pre-drilled hole, ensuring accurate seat depth and concentricity for fastener heads such as socket cap screws. This tool is typically installed and used by machinists, maintenance technicians, and trade professionals working with metal fabrication, equipment assembly, or mechanical repair tasks requiring clean, flat-bottomed recesses.

This counterbore pilot is suited for use in machine shops, maintenance facilities, and industrial production environments. It is designed to work with compatible counterbore cutter sets where a 3/16 inch shank fits the cutter body and a 5/16 inch pilot head registers in the guide hole. Applications include metalworking on steel and iron components where socket head cap screws or similar fasteners require a recessed seating surface. Sold as a single unit, it is a practical replacement or spare for standard counterbore tooling setups.

Key Features

• 5/16 inch head diameter for precise pilot registration in the guide hole
• 3/16 inch shank diameter for compatibility with standard counterbore cutter bodies
• Carbon steel construction provides adequate hardness for general-purpose metalworking
• Bright uncoated finish allows visual inspection of the tool surface and wear
• Sold individually, allowing single-unit replacement without purchasing a full set

Compatibility

Designed as an OEM-style replacement pilot for standard counterbore cutter sets accepting a 3/16 inch shank and requiring a 5/16 inch head diameter pilot.

Installation Notes

Installation is performed by machinists or maintenance technicians familiar with counterbore tooling. Ensure the drill press or milling machine is fully powered down and the spindle is locked before inserting or removing the pilot. The pilot should seat securely in the counterbore cutter body before initiating a cut. Do not use the pilot in applications exceeding the rated capacity of the carbon steel material.