Value Collection GH8862245 Solid Pilot Counterbore Hss

Product Description

The VALUE COLLECTION GH8862245 is a solid pilot counterbore designed for precision counterboring operations in metal fabrication and mechanical assembly. Built from high speed steel, this tool creates accurate, flat-bottomed recesses for socket head cap screws and similar fasteners in ferrous and non-ferrous workpieces. It features a 19/32-inch cutting diameter, a 13/32-inch pilot diameter, and a 1/2-inch straight-cylindrical shank for secure chuck engagement. The 3-flute geometry promotes efficient chip evacuation and a clean finish. Machinists, tool-and-die workers, and maintenance mechanics rely on this style of counterbore for repeatable results in production and repair environments.

This counterbore is suited for standard counterboring of 3/8-inch fastener clearance holes in steel, aluminum, cast iron, and similar materials. It is used in machine shops, maintenance and repair operations, and general metalworking applications where a precise bolt-head recess is required. The standard pilot keeps the tool centered in the drilled hole, ensuring concentricity between the pilot bore and the counterbored seat. It is run in a drill press, milling machine, or lathe setup at appropriate feeds and speeds for high speed steel tooling.

Key Features

• 19/32-inch counterbore diameter for 3/8-inch fastener compatibility
• 13/32-inch standard pilot diameter for centered, concentric cutting
• High speed steel construction for durability in ferrous and non-ferrous materials
• 3-flute design promotes chip clearing and a smooth recess finish
• 1/2-inch straight-cylindrical shank fits standard drill chucks and collets
• Forward cutting direction for conventional machine tool setups

Compatibility

Designed for counterboring 3/8-inch fastener clearance holes as an OEM-style solid pilot counterbore for general metalworking and machining applications.

Installation Notes

This tool is installed and operated by machinists and skilled tradespeople using a drill press, milling machine, or lathe. Secure the workpiece firmly before cutting and confirm the pilot fits the existing drilled hole without excessive play. Use cutting fluid appropriate for the workpiece material to extend tool life and improve surface finish. Set spindle speed according to published feeds-and-speeds tables for high speed steel counterbores and the material being machined.