Harvey Tool 31860 Square End Mill 1/16 in 3 Flute Carbide

Product Description

The HARVEY TOOL 31860 is a solid carbide square end mill designed for precision milling in tight-tolerance applications. With a 0.0600-inch cutting diameter and a 5/16-inch length of cut, this tool handles slotting, profiling, and contouring in small-feature work where accuracy is critical. The 3-flute geometry balances chip evacuation with surface finish quality. A 30-degree helix angle promotes smooth cutting action and reduces chatter. The bright, uncoated finish suits a wide range of workpiece materials without the thermal concerns of coated tools. Licensed machinists and CNC setup techs are the primary users of this tool.

This end mill fits standard 1/8-inch collets and tool holders, making it a straightforward drop-in for CNC machining centers and manual mills equipped for small-diameter work. It is centercutting, allowing plunge entry directly into the workpiece. The 2.5-inch overall length provides adequate reach for most small-pocket and micro-feature milling operations in production and prototype environments. Applications include die and mold work, printed circuit board fixturing, and precision part machining where small-diameter cutters are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in precision applications
• 0.0600-inch cutting diameter suited for small-feature and micro-milling work
• 3-flute design balances chip clearance with improved surface finish
• 30-degree helix angle reduces cutting forces and chatter
• Centercutting geometry allows direct plunge entry into material
• Bright uncoated finish compatible with a broad range of workpiece materials

Compatibility

Designed for use in 1/8-inch collets and compatible CNC or manual milling tool holders accepting that shank diameter.

Installation Notes

Installation and tool changes should be performed with the machine powered down and all motion axes at rest. Use a calibrated collet and torque wrench appropriate to the tool holder manufacturer specifications when securing the shank. Confirm runout with a dial indicator before production cuts, as small-diameter carbide end mills are sensitive to concentricity errors. Handle solid carbide tooling carefully to avoid edge chipping during storage and changeover.