Accupro 311810 Corner Radius End Mill 3/4 in 5 Flute Carbide

Product Description

The ACCUPRO 311810 is a single-end corner radius end mill engineered for high-performance milling in demanding shop environments. Built from solid micrograin carbide and coated with AlCrTiN for heat and wear resistance, it is suited for cutting ferrous and hardened materials at elevated speeds. The 0.090-inch corner radius reduces edge chipping and extends tool life in finishing and semi-finishing passes. With five flutes and a 38-degree right-hand helix, this end mill balances chip evacuation with surface finish quality. Licensed machinists and CNC programmers in production and job-shop settings are the primary users.

This end mill is appropriate for vertical machining centers, CNC mills, and manual knee mills running right-hand spindle rotation. The 3/4-inch shank and 3/4-inch cutting diameter allow direct installation in standard ER collet chucks, milling chucks, or end-mill holders without adapters. A 2-1/4-inch length of cut accommodates moderate-depth pocketing and profiling operations. The centercutting geometry enables plunge entry into the workpiece. Variable index flute spacing helps reduce chatter and harmonic vibration at aggressive feed rates.

Key Features

• Solid micrograin carbide construction for rigidity and extended tool life
• AlCrTiN coating provides thermal protection and oxidation resistance at high cutting speeds
• 0.090-inch corner radius reduces stress concentration and minimizes edge breakout
• Five flutes with variable index spacing reduce chatter during high-feed profiling
• 38-degree right-hand helix promotes efficient chip evacuation and smooth surface finishes
• Centercutting design allows direct plunge milling without pre-drilling

Compatibility

Designed as an OEM-style replacement for 3/4-inch shank corner radius end mill applications. Compatible with any right-hand spindle CNC or manual milling machine accepting a 3/4-inch round shank toolholder.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Seat the shank to the full recommended engagement depth in the collet or chuck to prevent pullout under load. Verify runout with a dial indicator after tool installation and before initiating a cutting cycle.