Value Collection 08908360 Counterbore Pilot 9/16 in Head

Product Description

The VALUE COLLECTION 08908360 is a counterbore pilot used to guide counterbore cutters during precision machining and metalworking operations. The pilot features a 9/16 inch head diameter and a 7/16 inch shank diameter, allowing it to seat securely inside a counterbore tool and align the cutting path with a pre-drilled hole. Constructed from carbon steel with a bright, uncoated finish, this pilot is suited for general-purpose shop use where corrosion exposure is minimal. Machinists and tool-and-die technicians typically install and swap these pilots when switching between counterbore sizes on manual or CNC drilling equipment.

Counterbore pilots are used in machine shops, fabrication facilities, and maintenance departments wherever fastener seats or bolt-clearance holes require a flat-bottomed recess. This pilot is appropriate for bench drill presses, milling machines, and hand-held drilling setups. The carbon steel construction handles standard ferrous and non-ferrous workpiece materials in light to medium-duty cutting applications. It is sold individually, making it a practical single-replacement option when a pilot is lost or worn.

Key Features

• 9/16 inch head diameter for precise counterbore cutter alignment
• 7/16 inch shank diameter for secure tool engagement
• Carbon steel construction for general-purpose durability
• Bright, uncoated finish — no coating buildup to affect fit or tolerance
• Single-piece quantity — direct replacement for worn or missing pilots

Compatibility

Designed as an OEM-style replacement pilot for counterbore tool sets requiring a 9/16 inch head diameter and 7/16 inch shank diameter. Verify pilot head and shank dimensions against your existing counterbore tool before installation.

Installation Notes

Installation is performed by machinists or qualified shop technicians. Before changing a counterbore pilot, power down and lock out the spindle or drilling equipment per applicable OSHA lockout/tagout procedures. Ensure the pilot shank seats fully and without play inside the counterbore body before resuming cutting operations. Do not force an improperly sized pilot into a counterbore tool, as this can damage the tool bore or cause workpiece misalignment.