Harvey Tool 75802-C3 Corner Radius End Mill 0.109in 4 Flute

Product Description

The HARVEY TOOL 75802-C3 is a miniature solid carbide corner radius end mill designed for high-precision milling in demanding materials. With a 0.109-inch cutting diameter and a 0.010-inch corner radius, it delivers a controlled edge break on part features without sacrificing dimensional accuracy. The four-flute, right-hand helical design at a 30-degree helix angle promotes efficient chip evacuation and stable cutting action. An AlTiN (aluminum titanium nitride) PVD coating improves heat resistance and extends tool life when machining ferrous and hard materials. This tool is single-end, centercutting, and suited for both roughing and finishing passes in tight geometries.

This end mill is built for precision machining applications where small-diameter tooling is required. It fits standard straight-shank toolholders with a 1/8-inch (0.125-inch) shank diameter. Typical applications include die and mold work, medical component machining, aerospace detail parts, and other operations involving steel, stainless steel, cast iron, non-ferrous metals, and composite materials. The stub and standard series designation means it is optimized for rigidity in short-reach, high-accuracy cuts where tool deflection must be minimized.

Key Features

• 0.010-inch corner radius with a tolerance of plus or minus 0.001 inches for precise edge geometry
• AlTiN PVD coating for elevated heat resistance in ferrous and hard-material applications
• Four right-hand helical flutes at 30-degree helix angle for smooth chip flow
• Centercutting geometry allows plunge and ramp entry moves
• Solid carbide construction provides rigidity and wear resistance in miniature tooling applications
• Straight cylindrical shank compatible with standard collet-style toolholders

Compatibility

Designed for use with standard straight-shank collet toolholders accepting a 1/8-inch shank. Suitable for machining steel, stainless steel, cast iron, non-ferrous metals, and composite materials per material application codes P, M, K, N, and O.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the toolholder is clean and free of chips or debris before seating the shank, and torque collet nuts to the toolholder manufacturer specification. Verify spindle runout is within acceptable limits before beginning a cut, as excessive runout will accelerate wear and compromise corner radius accuracy on a tool of this diameter. Follow machine guarding and PPE requirements appropriate to the milling operation.