Value Collection 08907321 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08907321 is a counterbore pilot used to guide counterbore cutters during precision boring operations on metal workpieces. The pilot features a 0.5 inch head diameter and a 0.375 inch shank diameter, machined from carbon steel with a bright, uncoated finish. This tool maintains cutter alignment during counterboring, helping machinists and fabricators produce accurate, concentric seat diameters for socket head cap screws and similar fasteners. It is a standard consumable tool for machine shops, maintenance departments, and fabrication facilities where consistent counterbore quality is required.

This counterbore pilot is suited for use in manual milling machines, drill presses, and CNC machining centers where counterboring operations are performed on steel, iron, or similar ferrous materials. The carbon steel construction makes it appropriate for general-purpose shop work at moderate cutting speeds. It is sold individually and is a direct replacement consumable for worn or damaged pilots in standard counterbore sets.

Key Features

• 0.5 inch head diameter for accurate counterbore seat guidance
• 0.375 inch shank diameter for secure chuck or holder retention
• Carbon steel construction for general-purpose machining applications
• Bright, uncoated finish for easy visual inspection of wear
• Sold as a single unit for individual replacement use

Compatibility

Designed as a general-purpose replacement counterbore pilot for standard counterbore cutter sets accepting a 0.375 inch shank and requiring a 0.5 inch head diameter pilot.

Installation Notes

Counterbore pilots are installed by qualified machinists or toolmakers into compatible counterbore cutter bodies before beginning the boring operation. Ensure the machine spindle is fully stopped and locked out before changing or seating pilots. Verify pilot fit in the cutter body before applying cutting loads, and inspect the pilot for wear or damage after each use cycle.