Value Collection 08906364 Counterbore Pilot Carbon Steel

Product Description

The VALUE COLLECTION 08906364 is a counterbore pilot tool used to guide counterbore cutters during precision drilling and fastener-seating operations. With a 9/16 inch head diameter and a 5/16 inch shank diameter, this pilot fits into the drill press or handheld setup to keep the counterbore centered on the workpiece. It is constructed from carbon steel with a bright, uncoated finish. Machinists, fabricators, and maintenance technicians use this type of pilot when accurate bolt-seat depth and alignment are required on metal or hard material assemblies.

This counterbore pilot is suited for use in machine shops, fabrication facilities, and MRO maintenance environments where consistent counterbore alignment is needed. It is a single-piece tool intended for use with a matching counterbore body. Applications include preparing bolt holes in steel plate, structural assemblies, and equipment housings where flush or recessed fastener seating is the goal.

Key Features

• 9/16 inch head diameter for standard counterbore cutter fitment
• 5/16 inch shank diameter for secure chuck or tool holder grip
• Carbon steel construction provides adequate hardness for ferrous and non-ferrous workpieces
• Bright, uncoated finish — no added coating to alter dimensional tolerances
• Compact and lightweight at 0.18 pounds for easy handling and storage

Compatibility

Designed as an OEM-style replacement or stock pilot for counterbore tooling sets requiring a 9/16 inch head diameter and 5/16 inch shank diameter pilot. Verify counterbore body pilot bore size before installation.

Installation Notes

This tool is installed by machinists and tooling technicians working with counterbore cutting sets. Ensure the drill press or milling machine is fully powered down and the spindle is locked before seating or removing the pilot. The pilot should slide snugly into the counterbore body without play — a loose fit will cause runout and an inaccurate seat. Follow applicable shop safety procedures and manufacturer guidelines for cutting speed and feed rate when running counterbore operations.