Accupro 12181511 Corner Radius End Mill 5/8 in 2 Flute

Product Description

The ACCUPRO 12181511 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous metals. It features a 5/8 inch cutting diameter, a 0.09 inch corner radius, and a 1-1/4 inch length of cut. The TiCN coating provides enhanced wear resistance and lubricity, extending tool life in demanding applications. With a 2-flute, right-hand spiral configuration and a 40-degree helix angle, this tool delivers efficient chip evacuation and smooth cutting action. It is single-end and centercutting, allowing plunge entry and versatile toolpath options. Machinists and CNC operators working in job shops or production environments will find this tool suited to profiling, slotting, and finishing passes where edge integrity matters.

This end mill is intended for use in CNC machining centers and manual mills where a corner radius geometry is required to reduce stress concentrations and improve part finish at inside radii. The 5/8 inch shank diameter matches the cutting diameter for a direct collet or end mill holder setup. The 3-1/2 inch overall length provides adequate reach for standard workholding setups without sacrificing rigidity. It is suited to profiling hardened steels, stainless steels, and other alloys where a durable micrograin carbide substrate and TiCN coating are appropriate for the material and feed strategy.

Key Features

• Solid micrograin carbide substrate for rigidity and edge retention in hard materials
• TiCN coating improves wear resistance and reduces built-up edge in ferrous applications
• 0.09 inch corner radius reduces stress risers and improves surface finish at part edges
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Centercutting design allows direct plunge entry without a pre-drilled start hole
• Right-hand cut and right-hand flute direction for standard CNC spindle compatibility

Compatibility

Designed as an OEM-style solid carbide corner radius end mill for use in standard 5/8 inch collets or end mill holders on CNC machining centers and manual knee mills requiring a 0.09 inch corner radius geometry.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator following standard tool-holding procedures. Ensure the machine spindle is fully stopped and locked before inserting or removing the tool from the holder. Use a properly sized collet or end mill holder that matches the 5/8 inch shank diameter, and torque the retention mechanism to the tool holder manufacturer's specification. Inspect the cutting edges and coating for chips or wear before each use, and verify runout with a dial indicator after seating to confirm concentricity.