Harvey Tool 51660-C3 Corner Radius End Mill 0.06in 4 Flute

Product Description

The HARVEY TOOL 51660-C3 is a miniature solid carbide corner radius end mill designed for precision milling in demanding production environments. It carries a 0.06-inch mill diameter with a 0.5 mm (0.0200-inch) corner radius and a 0.18-inch length of cut, making it well-suited for fine-detail work in tight geometries. The AlTiN PVD coating increases surface hardness and thermal resistance, extending tool life during high-speed passes on hard materials. With four helical right-hand flutes and a right-hand cutting direction, this tool delivers efficient chip evacuation and a smooth finish in both roughing and finishing operations. Licensed machinists and CNC operators working with precision components select this tool for its tight dimensional tolerances and consistent corner geometry.

This end mill is built for use on steel, stainless steel, cast iron, non-ferrous metals, and composites. Its stub and standard miniature form factor makes it a practical choice for micro-milling applications in mold and die work, aerospace component machining, and medical device manufacturing where small-diameter, tight-tolerance cuts are required. The straight cylindrical shank fits standard toolholders accepting a 0.125-inch shank diameter.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard-material milling
• AlTiN PVD coating for elevated thermal resistance and extended tool life
• 0.5 mm corner radius with tolerance of plus or minus 0.0010 inches for repeatable geometry
• Four right-hand helical flutes supporting both roughing and finishing passes
• Center-cutting capable, allowing plunge entry where required
• Normal pitch, no chipbreaker, no coolant-through - suited for external coolant or air-blast setups

Compatibility

Compatible with standard toolholders accepting a 0.125-inch straight cylindrical shank. Designed for use on steel, stainless steel, cast iron, non-ferrous metals, and composite workpiece materials.

Installation Notes

Installation should be performed by a qualified CNC machinist or tool-and-die technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Secure the shank in a precision collet or end mill holder to the depth recommended by the toolholder manufacturer, and verify runout with a dial indicator before beginning a cut. Avoid exceeding the recommended depth of cut for the 0.06-inch diameter, as miniature carbide tools are sensitive to lateral deflection and sudden load changes.