Value Collection 08905309 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08905309 is a counterbore pilot used to guide counterboring tools during precision hole preparation in metalworking and fabrication applications. With a 15/32 inch head diameter and a 1/4 inch shank diameter, this pilot maintains accurate alignment between the counterbore cutter and the existing pilot hole. Constructed from carbon steel with a bright, uncoated finish, it delivers consistent performance in light to medium duty boring operations. This pilot is installed by machinists, tool and die technicians, and general fabricators working with standard counterbore sets.

Counterbore pilots are used wherever a fastener seat must be machined flush or below the workpiece surface. This pilot is suited for bench drill press, milling machine, and hand-held drill operations where a 1/4 inch pilot hole has been pre-drilled. The bright uncoated carbon steel construction is appropriate for dry or minimally lubricated cutting in steel, aluminum, and similar materials. It is sold individually and is compatible with interchangeable-pilot counterbore systems that accept a 1/4 inch shank pilot.

Key Features

• 15/32 inch head diameter for accurate counterbore seat alignment
• 1/4 inch shank diameter fits standard interchangeable-pilot counterbore bodies
• Carbon steel construction provides durability in light to medium duty cutting
• Bright uncoated finish allows visual inspection of tool condition
• Sold as an individual piece for targeted replacement or kit expansion

Compatibility

Designed as a replacement or supplemental pilot for interchangeable-pilot counterbore sets accepting a 1/4 inch shank pilot diameter.

Installation Notes

Installation and use of this pilot should be performed by a qualified machinist or fabrication technician familiar with counterboring operations. Ensure the machine spindle is fully stopped and power is disconnected before inserting or removing the pilot from the counterbore body. Secure the pilot firmly according to the counterbore manufacturer's retention method before beginning the cut. Follow applicable shop safety standards and use appropriate cutting fluid for the workpiece material when required.