Value Collection 08908741 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08908741 is a counterbore pilot used to guide counterboring tools during precision machining operations. The pilot aligns the cutting tool to an existing hole, ensuring the counterbore is concentric and seated correctly. It features a 1.25-inch head diameter and a 7/16-inch (0.4375-inch) shank diameter. Constructed from carbon steel with a bright, uncoated finish, this pilot is suited for general-purpose shop use. Machinists and tool-and-die technicians rely on counterbore pilots to maintain bore concentricity when preparing seats for socket head cap screws and similar fasteners.

This counterbore pilot is appropriate for use in machine shops, maintenance facilities, and fabrication environments where counterboring operations are performed on ferrous and non-ferrous workpieces. It is selected when a replacement or spare pilot is needed for an existing counterbore set, or when building out a tooling inventory for a specific hole size. The bright finish suits standard dry or lubricated cutting applications on mild steel, aluminum, and similar materials.

Key Features

• 1.25-inch head diameter provides a stable seating reference during counterboring
• 7/16-inch (0.4375-inch) shank diameter fits corresponding counterbore tool holders
• Carbon steel construction offers adequate hardness for general-purpose counterboring applications
• Bright, uncoated finish allows visual inspection of pilot condition before use
• Compact and lightweight at 0.56 pounds for easy handling and storage

Compatibility

Designed as a general-purpose counterbore pilot compatible with counterboring tools that accept a 7/16-inch shank pilot. Verify shank and head diameter requirements against your specific counterbore body before ordering.

Installation Notes

Counterbore pilots are installed and removed by machinists or maintenance technicians using appropriate tooling for the counterbore body. Ensure the machine spindle is fully stopped and the tool is secured before inserting or removing the pilot. Inspect the pilot shank for wear or damage prior to each use, as a worn pilot will allow the counterbore to run off-center. Follow standard shop safety practices and applicable facility procedures when operating drilling or milling equipment.