Value Collection 08904401 Counterbore Pilot 5/8 in Head

Product Description

The VALUE COLLECTION 08904401 is a counterbore pilot used to guide counterboring tools during precision drilling and boring operations. The pilot features a 5/8 inch head diameter and a 3/16 inch shank diameter, making it suited for maintaining concentricity when enlarging or finishing bored holes. Constructed from carbon steel with a bright uncoated finish, this pilot delivers reliable rigidity for general machining applications. It is installed by machinists and tool-and-die professionals working on lathes, drill presses, or milling machines where accurate hole alignment is critical.

This counterbore pilot is appropriate for light to medium-duty machining tasks in both shop and maintenance environments. It fits into standard counterboring tool bodies that accept a 3/16 inch shank and is commonly used when producing counterbored holes for fastener seating in metal fabrication, mechanical assembly, and repair work. The bright uncoated finish is suitable for dry or lightly lubricated cutting conditions on ferrous and non-ferrous materials.

Key Features

• 5/8 inch head diameter for accurate counterbore guidance
• 3/16 inch shank diameter for secure seating in compatible counterbore bodies
• Carbon steel construction provides adequate rigidity for general machining
• Bright uncoated finish suitable for standard shop cutting conditions
• Lightweight at 0.12 pounds for easy handling and tool changes

Compatibility

Designed as a replacement or spare counterbore pilot for standard counterboring tool bodies accepting a 3/16 inch shank diameter with a 5/8 inch pilot head.

Installation Notes

Installation is performed by qualified machinists or maintenance technicians. Ensure the machine spindle is fully powered down and locked out before inserting or removing the pilot from the counterbore body. Seat the shank fully and verify it is secure before resuming any cutting operation. Apply appropriate cutting fluid or lubricant as required by the workpiece material to extend pilot service life.