Value Collection 08905481 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08905481 is a counterbore pilot used to guide counterbore cutting tools during machining operations. It features a 0.75-inch head diameter and a 0.25-inch shank diameter, providing a secure, centered fit inside the counterbore body. Constructed from carbon steel with a bright, uncoated finish, this pilot is suited for general-purpose metal cutting and machining environments. Machinists and tool-and-die professionals install this pilot to maintain concentricity when boring fastener seat recesses in ferrous and non-ferrous workpieces.

This counterbore pilot is used in manual and CNC machining setups where accurate fastener head recess boring is required. It fits standard counterbore tool bodies that accept a 0.25-inch pilot shank. Typical applications include drilling and counterboring operations on steel, aluminum, and similar materials in manufacturing, maintenance, and fabrication settings. The bright finish offers no additional corrosion protection, making it best suited for indoor, controlled shop environments.

Key Features

• 0.75-inch head diameter for proper seating inside the counterbore body
• 0.25-inch shank diameter for compatibility with standard pilot-accepting counterbore tools
• Carbon steel construction provides adequate hardness for general-purpose boring tasks
• Bright, uncoated finish — no added plating or surface treatment
• Lightweight at 0.15 pounds, minimizing tool assembly weight

Compatibility

Designed as a replacement or spare counterbore pilot for standard counterbore tool bodies accepting a 0.25-inch pilot shank and a 0.75-inch head diameter.

Installation Notes

Installation is performed by machinists during counterbore tool assembly. Ensure the counterbore tool body and spindle are fully powered down and secured before inserting or removing the pilot. The pilot should seat firmly without play inside the tool body bore. Inspect the pilot shank for wear or damage before each use to maintain cutting accuracy.