Accupro 12183122 Corner Radius End Mill 5/8 in 4 Flute Carbide

Product Description

The ACCUPRO 12183122 is a solid carbide corner radius end mill designed for precise milling operations requiring a controlled edge radius. It features a 5/8 inch diameter, a 0.09 inch corner radius, and a TiCN (Titanium Carbonitride) coating that extends tool life in ferrous and non-ferrous applications. With 4 right-hand spiral flutes and a 40-degree helix angle, it delivers efficient chip evacuation and smooth surface finishes. The micrograin carbide substrate provides rigidity and wear resistance suited to demanding cut conditions. This tool is installed by machinists and CNC programmers in job shop, production, and toolroom environments.

This end mill is used in vertical and horizontal milling machines and CNC machining centers for profiling, slotting, and contouring where a radius at the corner of a pocket or wall is required. The long-length configuration, with a 2-1/8 inch length of cut and 4-5/8 inch overall length, makes it suitable for deeper cavity work and extended-reach applications. The centercutting design allows plunge entry without a pre-drilled hole. Right-hand cutting direction applies to standard spindle rotation.

Key Features

• 0.09 inch corner radius reduces stress concentration at milled edges and improves surface finish
• TiCN coating provides enhanced hardness and lubricity compared to uncoated carbide
• Micrograin solid carbide substrate for increased rigidity and edge retention
• 4-flute, 40-degree helix design promotes efficient chip evacuation in deep cuts
• Centercutting capability allows direct plunge entry
• Long-length geometry with 2-1/8 inch length of cut for deep pocket and cavity milling

Compatibility

Designed for use in CNC machining centers and manual milling machines accepting a 5/8 inch straight shank. Suitable as an OEM-style replacement or direct procurement for shops requiring a long-length, TiCN-coated corner radius end mill in this diameter class.

Installation Notes

Install in a compatible collet, end mill holder, or shrink-fit toolholder rated for the 5/8 inch shank diameter. Confirm runout at the toolholder before beginning cuts, as runout directly affects corner radius accuracy and tool life. Follow machine tool manufacturer guidelines for spindle speed and feed rate based on workpiece material. Always power down and lock out the machine spindle before changing or inspecting tooling.