Harvey Tool 47215-C4 Corner Radius End Mill 0.015 in 4 Flute

Product Description

The HARVEY TOOL 47215-C4 is a miniature corner radius end mill designed for precision milling in tight-tolerance applications. Built from solid carbide and finished with a PVD diamond coating, it handles steel, stainless steel, cast iron, aluminum, composites, and non-ferrous metals. The tool measures 0.0150 inches in cutting diameter with a 0.0030-inch corner radius and runs four right-hand spiral flutes at a 30-degree helix angle. The diamond coating extends tool life in abrasive materials and supports both roughing and finishing operations in a single pass.

This end mill is suited for CNC machining centers and high-speed spindles where miniature features demand repeatable accuracy. Common applications include mold and die work, medical component machining, and aerospace detail parts where small-diameter tools with tight radius tolerances are required. The centercutting geometry allows plunge entry, expanding its usefulness in slot milling and pocket operations. It fits a standard 1/8-inch straight shank and seats in conventional toolholders used across production and prototype shops.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding materials
• PVD diamond coating rated for steel, stainless steel, cast iron, aluminum, wood, and composite workpieces
• 0.0030-inch corner radius with tolerance of plus or minus 0.0010 inches for controlled edge blending
• Four right-hand flutes at 30-degree helix for efficient chip evacuation at miniature scale
• Centercutting design enables direct plunge milling without a pre-drilled entry hole
• Single-end configuration on a 1.5-inch overall length with 1/8-inch straight-cylindrical shank

Compatibility

Designed for use with standard toolholders accepting a 1/8-inch straight-cylindrical shank. Suited for CNC machining applications in steel, stainless steel, cast iron, aluminum, non-ferrous metals, wood, and composite materials as specified by the manufacturer.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Seat the shank fully into a clean, undamaged collet or toolholder and torque the retention hardware to the toolholder manufacturer's specification. At this diameter, runout control is critical — inspect holder and collet concentricity before use. Never exceed the spindle speed and feed rate parameters established for the machine, workpiece material, and depth of cut combination.