Value Collection 08908527 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08908527 is a counterbore pilot used to guide counterbore cutting tools during precision boring operations. The pilot features a 13/16 inch head diameter and a 7/16 inch shank diameter, making it suitable for maintaining concentricity when enlarging or finishing a bored hole. Constructed from carbon steel with a bright uncoated finish, this pilot delivers reliable performance in standard shop and field machining applications. It is a single-piece component sold individually and is a common consumable in maintenance, manufacturing, and tool-and-die environments.

Counterbore pilots are used in machine shops, fabrication facilities, and maintenance environments where bolt-hole counterboring is required. This pilot fits into the counterbore tool body to align the cutting head with a pre-drilled pilot hole, ensuring the counterbore runs true. Typical applications include preparing fastener seats in metal plate, structural steel, and machined components. The 7/16 inch shank suits standard counterbore holders designed for that shank size, and the 13/16 inch head diameter corresponds to the counterbore tool it guides.

Key Features

• 13/16 inch head diameter for proper tool alignment in matching counterbore cutters
• 7/16 inch shank diameter fits standard counterbore tool bodies of the same shank size
• Carbon steel construction provides adequate hardness for use in general-purpose boring operations
• Bright uncoated finish for easy visual inspection and standard lubrication compatibility
• Sold as a single unit, allowing targeted replacement without purchasing a full set

Compatibility

Designed as a replacement or spare pilot for counterbore tool bodies accepting a 7/16 inch shank pilot with a 13/16 inch head diameter. No specific brand or model compatibility was provided in the product data.

Installation Notes

Installation is typically performed by machinists or maintenance technicians familiar with counterboring operations. Before inserting the pilot, ensure the counterbore tool body is fully secured and the workpiece is clamped. Verify that the pilot shank seats fully and without play in the tool holder before beginning the cut. Use appropriate cutting fluid for the workpiece material to extend pilot service life.