Value Collection 08909640 Counterbore Pilot

Product Description

The VALUE COLLECTION 08909640 is a counterbore pilot used to guide counterboring operations and ensure accurate, centered seating holes for fastener heads. The pilot aligns the counterbore cutter over an existing drilled hole, maintaining concentricity during machining. It features a 1 inch head diameter and a 1/2 inch shank diameter, machined from carbon steel with a bright, uncoated finish. This tool is used by machinists, maintenance technicians, and trade professionals performing precision hole preparation on metal workpieces.

Counterbore pilots are commonly used in metalworking, fabrication shops, and field maintenance applications where cap screws or bolts must sit flush or below the surface of a workpiece. The 1/2 inch shank fits standard counterbore holders and drill press chucks. The bright finish allows for easy visual inspection of the tool surface before and after use.

Key Features

• 1 inch head diameter for accurate counterbore alignment
• 1/2 inch shank diameter fits standard counterbore tool holders
• Carbon steel construction provides adequate hardness for general metalworking applications
• Bright uncoated finish for straightforward inspection and measurement
• Sold individually as a single unit

Compatibility

Designed as a replacement or supplemental pilot for standard counterbore sets and holders accepting a 1/2 inch shank diameter.

Installation Notes

Installation and use should be performed by a qualified machinist or trained maintenance technician. Secure the pilot firmly in the counterbore holder before beginning any cutting operation and confirm the existing pilot hole diameter matches the pilot tip before use. Always power down and lock out the machine before changing or inspecting the pilot. Inspect the pilot for wear or damage before each use.