Harvey Tool 74550 Corner Radius End Mill 1/2 in 4 Flute Carbide

Product Description

The HARVEY TOOL 74550 is a solid carbide corner radius end mill designed for precision milling in demanding shop environments. With a 0.5000 inch mill diameter and a 0.0500 inch corner radius, this single-end tool reduces stress concentrations at part corners and extends workpiece fatigue life compared to sharp-corner alternatives. The 4-flute, right-hand spiral configuration supports both roughing and finishing passes in a single setup. The bright, uncoated finish makes it well suited for non-ferrous metals and applications where coating interaction with the workpiece is a concern. Licensed machinists and CNC tooling technicians are the primary users of this end mill series.

This end mill is intended for use in CNC machining centers and manual mills where tight-tolerance corner radii are required. It performs across a range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, aluminum, wood, and composite materials. The 1 inch length of cut and 3 inch overall length make it appropriate for standard-depth milling operations in both prototype and production environments. The straight-cylindrical shank fits standard toolholders commonly found in job shops and production cells.

Key Features

• 0.0500 inch corner radius with a tight tolerance of plus or minus 0.0010 inches for consistent part geometry
• Solid carbide construction for rigidity and wear resistance across hard and abrasive workpiece materials
• 4-flute right-hand spiral design supports both roughing and finishing material removal strategies
• Centercutting geometry allows plunge entry into the workpiece without pre-drilling
• Bright, uncoated finish suited for non-ferrous metals, aluminum, and composite materials
• Normal pitch and fixed helix angle at 30 degrees for predictable chip evacuation at typical feed and speed parameters

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for standard straight-cylindrical toolholders with a 1/2 inch bore. Part of the Harvey Tool Miniature End Mills Corner Radius Stub and Standard series.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. The tool should be seated fully into a compatible toolholder and torqued to the toolholder manufacturer's specification using the appropriate wrench. Inspect the shank and cutting edges for chips or runout before engaging the spindle. Power down and lock out the machine before changing tooling in accordance with OSHA lockout/tagout procedures.