Value Collection 08908402 Counterbore Pilot 5/8 in Head

Product Description

The VALUE COLLECTION 08908402 is a counterbore pilot tool used to guide counterbore cutters during precision boring operations. The pilot fits into a pre-drilled hole and centers the counterbore cutter, ensuring accurate seat depth and concentricity. It features a 5/8 inch head diameter and a 7/16 inch shank diameter. Constructed from carbon steel with a bright, uncoated finish, this pilot is suited for general-purpose machining and fabrication work. Machinists and maintenance technicians install this type of pilot when preparing fastener seats in metal components where flush or recessed bolt heads are required.

This counterbore pilot is used in machine shop, manufacturing, and industrial maintenance environments. It is appropriate for applications involving steel, aluminum, and similar materials where counterbored holes are needed to seat socket head cap screws, bolts, or similar fasteners. The bright uncoated finish makes it a practical choice for standard shop conditions where corrosion resistance is not a primary concern. It is sold individually and is suitable for use with compatible counterbore cutter sets.

Key Features

• 5/8 inch head diameter for accurate counterbore seat guidance
• 7/16 inch shank diameter for secure tool holder engagement
• Carbon steel construction for general-purpose machining durability
• Bright, uncoated finish — no added coating to affect tolerances
• Sold individually, no multi-pack minimum required

Compatibility

Designed as a standard counterbore pilot for use with counterbore cutter sets accepting a 7/16 inch shank and requiring a 5/8 inch head diameter pilot.

Installation Notes

Installation is performed by machinists or tool and die technicians using a drill press, milling machine, or hand-held power tool. Ensure the machine is fully powered down and secured before changing or seating the pilot. The pilot should be inserted into the counterbore cutter body securely before beginning the boring operation. Follow applicable shop safety procedures and manufacturer guidance for spindle speed and feed rate selection.