Value Collection 08908568 Counterbore Pilot 7/8 in Head

Product Description

The VALUE COLLECTION 08908568 is a counterbore pilot used to guide counterboring tools during precision drilling and boring operations. The pilot centers the counterbore cutter over an existing hole, ensuring accurate, concentric seat cuts for fastener heads and dowel pins. Machined from carbon steel with a bright, uncoated finish, the pilot measures 7/8 inch in head diameter and 7/16 inch in shank diameter. This type of pilot is a standard consumable in metalworking, maintenance, and fabrication shops where counterbored holes are required for socket head cap screws, dowels, or similar fasteners. Weight is 0.28 pounds.

Counterbore pilots are used in machine shops, maintenance and repair operations, and production fabrication environments. This pilot is suited for use with compatible counterbore cutter sets where the shank and head diameters match the bore and body of the cutting tool. Typical applications include creating flat-bottomed recesses in steel, iron, and similar materials to allow fastener heads to sit flush or below the work surface. Installation is performed on drill presses, milling machines, or hand-held power drills with appropriate speed and feed settings for the material being cut.

Key Features

• 7/8 inch head diameter for accurate counterbore seat sizing
• 7/16 inch shank diameter for secure tool holding in compatible counterbore bodies
• Carbon steel construction provides adequate hardness for general metalworking applications
• Bright, uncoated finish allows easy visual inspection for wear or damage
• Lightweight at 0.28 pounds, suited for frequent tool changes

Compatibility

Designed as an OEM-style replacement or standard pilot for counterbore tool sets requiring a 7/8 inch head diameter and 7/16 inch shank diameter. Verify pilot head and shank dimensions against the counterbore cutter body before use.

Installation Notes

Installation is typically performed by machinists or maintenance technicians. Ensure the pilot shank seats fully and securely in the counterbore cutter body before operating. Power down and de-energize the machine spindle before inserting or removing the pilot. Inspect the pilot for wear, scoring, or runout before each use to maintain hole accuracy and prevent tool damage.