Value Collection 08907289 Counterbore Pilot 7/16 in Head

Product Description

The VALUE COLLECTION 08907289 is a counterbore pilot used to guide counterboring tools during machining operations. The pilot fits into a pre-drilled hole and centers the counterbore cutter to produce a flat-bottomed recess for socket head cap screws and similar fasteners. It features a 7/16 inch head diameter and a 3/8 inch shank diameter, machined from carbon steel with a bright uncoated finish. This tool is handled by machinists, tool-and-die workers, and maintenance technicians working with drill presses, milling machines, or handheld equipment where accurate counterbore alignment is required.

This counterbore pilot is suited for metalworking and fabrication applications where consistent seat depth and concentricity matter. It is commonly used in industrial maintenance, machine shops, and production environments. The bright finish indicates no additional coating treatment, making it straightforward to inspect for wear. Sold as a single unit, it is a direct replacement or spare pilot for standard counterbore sets that accept a 3/8 inch shank.

Key Features

• 7/16 inch head diameter for accurate bore alignment
• 3/8 inch shank diameter for compatibility with standard counterbore tool holders
• Carbon steel construction for durability in general metalworking applications
• Bright uncoated finish allows easy visual inspection of tool condition
• Single-piece packaging for straightforward inventory and replacement use

Compatibility

Designed as a replacement or spare pilot for counterbore tools accepting a 3/8 inch shank diameter with a 7/16 inch pilot head, typical of standard counterbore sets used in general metalworking applications.

Installation Notes

Counterbore pilots are installed and serviced by machinists and maintenance technicians. Power down and fully secure the workpiece before changing or seating the pilot in the counterbore body. Confirm the shank fits snugly in the tool holder with no lateral play before beginning a cut. Inspect the pilot for wear or damage before each use, as a worn pilot will produce off-center counterbores.