Accupro 310473 Corner Radius End Mill 3/4 in 4 Flute Carbide

Product Description

The ACCUPRO 310473 is a solid carbide corner radius end mill designed for high-performance milling operations in demanding shop environments. Built to Series HS standards, it features a 3/4 inch diameter, a 2-1/4 inch length of cut, and a 5 inch overall length. The 4-flute, single-end configuration with a 38-degree helix promotes efficient chip evacuation and smooth surface finishes. An AlCrTiN coating provides heat and wear resistance suited to high-speed cutting of hardened steels, stainless, and similar ferrous materials. The 0.030 inch corner radius reduces stress concentration at the cutting edge and extends tool life in profiling and finishing passes. Machinist and CNC mill operators install this tool in standard 3/4 inch toolholders.

This end mill is used in vertical and horizontal CNC machining centers as well as manual knee mills where a 3/4 inch shank is standard. It is well suited for side milling, slotting, profiling, and finishing passes in ferrous and non-ferrous metals. The centercutting geometry allows plunge entry, adding flexibility for pocketing operations. Variable index flute spacing reduces harmonic chatter at aggressive feed rates, making it a practical choice for high-material-removal roughing as well as finish profiling where corner integrity is critical.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention in hard materials
• AlCrTiN coating resists heat and abrasive wear during high-speed cutting
• 0.030 inch corner radius reduces edge chipping and improves part surface finish
• 4-flute, right-hand spiral with 38-degree helix for aggressive chip evacuation
• Variable index flute spacing dampens vibration and reduces chatter
• Centercutting design enables direct plunge entry for pocketing applications

Compatibility

Designed as an OEM-style replacement or direct tooling option for CNC machining centers and manual mills accepting a 3/4 inch shank end mill. Compatible with standard 3/4 inch ER, Weldon, and hydraulic toolholders.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and locked out before loading or removing the tool. Seat the shank fully in the toolholder to the recommended gauge length and torque the retention hardware per the toolholder manufacturer specification. Verify runout with a dial indicator before beginning a cut, as excessive runout accelerates edge wear and degrades surface finish.