Value Collection 08909566 Counterbore Pilot 7/8 in Head

Product Description

The VALUE COLLECTION 08909566 is a counterbore pilot used to guide counterboring operations on metal workpieces. The pilot fits into a pre-drilled hole to keep the counterbore cutter centered and aligned during machining. With a 0.5 inch shank diameter and a 0.875 inch head diameter, this pilot is suited for standard counterbore setups found in fabrication shops, maintenance facilities, and industrial assembly environments. It is constructed from carbon steel with a bright, uncoated finish. Machinists, tool-and-die technicians, and maintenance mechanics typically use this type of pilot when producing flat-bottomed recesses for socket-head cap screws or similar fasteners.

This counterbore pilot is appropriate for use in manual drill press operations and CNC machining centers where accurate pilot alignment is required. It is well suited for general-purpose metalworking applications involving carbon steel, aluminum, and similar workpiece materials. The bright uncoated finish indicates no additional surface treatment, which is standard for tooling used in light-duty or short-run machining applications. This is a single-unit item, packaged individually.

Key Features

• 0.875 inch head diameter for consistent counterbore alignment
• 0.5 inch shank diameter for standard tool holder compatibility
• Carbon steel construction for general-purpose machining durability
• Bright uncoated finish — no additional coating or heat treatment
• Single-piece packaging for individual replacement or supplemental tooling needs

Compatibility

Designed as a standard counterbore pilot for use with counterbore cutters requiring a 0.5 inch shank and a 0.875 inch head diameter in general metalworking and maintenance machining applications.

Installation Notes

Installation of counterbore pilots is performed by machinists or maintenance mechanics familiar with drill press and milling machine setup. Ensure all spindle power is off and the machine is fully stopped before inserting or removing the pilot. The pilot should be secured in the counterbore tool holder according to the tool manufacturer's specifications before beginning any cutting operation. Inspect the pilot for wear or damage before each use to maintain proper alignment and surface finish quality.