Harvey Tool 25509-C3 Solid Carbide Counterbore 0.1406 in

Product Description

The HARVEY TOOL 25509-C3 is a solid carbide counterbore designed for precision recess cutting in metalworking and machining applications. It features a 0.1406-inch cutting diameter and a 9/16-inch flute length, making it suited for small-diameter counterbore operations where tight tolerances are required. The AlTiN (aluminum titanium nitride) coating improves heat resistance and extends tool life in ferrous and hardened materials. With 4 flutes and a 3/16-inch shank diameter, this tool delivers smooth chip evacuation and consistent finish quality. Overall length is 3 inches. Machinists and tool-and-die professionals working with CNC mills or manual knee mills are the primary users of this tool.

This counterbore is built for use in precision machining environments including job shops, aerospace, medical device manufacturing, and general metal fabrication. It is appropriate for cutting counterbore recesses in steel, stainless steel, and other ferrous alloys where AlTiN coating performance is advantageous. The small cutting diameter makes it particularly useful for fastener-head recessing in tight or intricate workpieces where standard-size counterbores cannot reach.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN coating for enhanced heat resistance and extended tool life
• 0.1406-inch cutting diameter for small, precise counterbore recesses
• 4-flute geometry promotes smooth chip evacuation and surface finish
• 3/16-inch shank diameter for compatibility with standard collet and chuck setups
• 9/16-inch flute length provides adequate depth capacity for most small-fastener recess applications

Compatibility

Designed as an OEM-style solid carbide counterbore for use in CNC machining centers, manual mills, and drill presses equipped with collets or chucks accepting a 3/16-inch shank.

Installation Notes

Installation should be performed by a qualified machinist. Secure the 3/16-inch shank in a properly sized collet or end mill holder and verify runout before cutting. Ensure the spindle and workpiece are fully secured before engaging the tool. Follow shop-standard speeds and feeds for carbide tooling in the workpiece material being machined.