Value Collection 08906240 Counterbore Pilot 3/8 in Head

Product Description

The VALUE COLLECTION 08906240 is a counterbore pilot used to guide counterbore cutters during precision boring operations on metal workpieces. The pilot features a 3/8 inch head diameter and a 5/16 inch shank diameter, providing stable centering support when enlarging or finishing bored holes. Constructed from carbon steel with a bright, uncoated finish, this pilot is suited for general-purpose machining and maintenance applications. It is installed and used by machinists, millwrights, and maintenance technicians working with drill presses, milling machines, or hand-held boring equipment.

This counterbore pilot is appropriate for light to medium-duty shop and field machining tasks where accurate hole alignment is required. The bright uncoated finish keeps the surface free from coatings that could affect dimensional tolerances in close-fit applications. Typical use cases include enlarging existing holes for fastener head clearance and preparing surfaces for socket head cap screws in general fabrication or equipment repair work.

Key Features

• 3/8 inch head diameter for stable pilot engagement in bored holes
• 5/16 inch shank diameter for secure chuck or holder retention
• Carbon steel construction for general-purpose machining durability
• Bright, uncoated finish maintains close dimensional tolerances
• Compact and lightweight at 0.05 pounds for easy handling

Compatibility

Designed as a general-purpose counterbore pilot compatible with standard counterbore cutter sets and toolholders sized for a 5/16 inch shank diameter.

Installation Notes

Installation is performed by machinists or maintenance technicians familiar with counterboring procedures. Secure the shank firmly in the counterbore cutter holder or drill chuck before beginning the operation, and ensure the workpiece is properly clamped to prevent movement. Always power down and de-energize the machine before changing pilots or cutters. Inspect the pilot for wear or damage before each use to maintain accurate hole alignment.