Harvey Tool 872316-C6 Corner Radius End Mill 1/4 in 7 Flute

Product Description

The HARVEY TOOL 872316-C6 is a solid carbide corner radius end mill engineered for finishing operations in high-temperature alloys, hardened steels, stainless steels, and cast iron. It features a 1/4 inch diameter, a 0.005 inch corner radius, and 7 flutes arranged in a variable helix geometry that reduces chatter and improves surface finish at high feed rates. The AlTiN (aluminum titanium nitride) PVD coating provides thermal resistance and extended tool life when cutting abrasive and heat-resistant workpiece materials. Machinists and tool-and-die professionals use this end mill for tight-tolerance finishing passes where edge integrity and dimensional accuracy are critical.

This end mill is suited for finishing cuts in steel, stainless steel, cast iron, and hard alloys in both production and job-shop environments. With a 3/8 inch length of cut and 2.5 inch overall length on a straight cylindrical 1/4 inch shank, it fits standard 1/4 inch collets and high-precision toolholders. The short flute length and close pitch make it appropriate for rigid setups where radial depth and chip control are priorities. It is a single-end, right-hand cutting, right-hand flute configuration with no chipbreaker and no coolant-through capability.

Key Features

• Variable helix design reduces harmonic vibration and chatter during finishing passes
• 7-flute, close-pitch configuration supports higher feed rates in finishing applications
• 0.005 inch corner radius protects the cutting edge and reduces workpiece stress concentrations
• AlTiN PVD coating delivers thermal hardness for cutting high-temp alloys and hardened steels
• Solid carbide construction provides stiffness and dimensional stability in rigid setups
• Right-hand cut and flute direction; compatible with high-precision toolholders

Compatibility

Designed for use with high-precision toolholders. Intended for finishing operations on steel, stainless steel, cast iron, and hard alloys. Part of the Harvey Tool Variable Helix End Mills for High Temp Alloys - Finishers - Corner Radius series.

Installation Notes

Installation and tool changes must be performed by a qualified machinist with the machine spindle fully stopped and locked out per facility safety procedures. Seat the straight cylindrical shank fully and evenly in a high-precision collet or toolholder to minimize runout. Do not exceed the manufacturer-recommended speeds and feeds for the workpiece material and depth of cut. Inspect the cutting edges for chipping or wear before each use; a damaged corner radius will compromise surface finish and dimensional tolerance.