Value Collection 08903148 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08903148 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, ensuring accurate, concentric seat cuts around bolt and fastener holes. Machined from carbon steel with a bright, uncoated finish, this pilot offers solid rigidity for general-purpose shop and field work. The 7/32 inch head diameter and 5/32 inch shank diameter make it suited for light-duty counterboring tasks where precise alignment is required. Machinists, tool-and-die technicians, and maintenance mechanics are the primary installers.

This counterbore pilot is used in machine shops, maintenance facilities, and fabrication environments where counterbored holes are needed for socket head cap screws, button head screws, or other fasteners requiring a recessed seat. It is appropriate for use in both ferrous and non-ferrous materials where carbon steel tooling provides adequate hardness. Typical applications include fixture building, metal fabrication, and equipment repair requiring fastener seat preparation.

Key Features

• 7/32 inch head diameter for proper counterbore seating guidance
• 5/32 inch shank diameter for standard pilot hole fitment
• Carbon steel construction provides rigidity for general-purpose machining
• Bright, uncoated finish for straightforward inspection and dimensional verification
• Single-piece design with no moving parts for consistent, repeatable alignment

Compatibility

Designed as a replacement or supplemental pilot for counterboring tool sets requiring a 7/32 inch head diameter and 5/32 inch shank diameter pilot in carbon steel construction.

Installation Notes

This pilot is installed by a machinist or maintenance mechanic as part of a counterboring operation. Ensure the workpiece is securely clamped and the machine spindle is fully stopped before inserting or removing the pilot. Use the appropriate counterbore body that matches the pilot shank diameter to prevent tool runout or misalignment. Follow applicable shop safety protocols and machine tool operating procedures during use.