Accupro 12183125 Corner Radius End Mill 5/8 in 4 Flute

Product Description

The ACCUPRO 12183125 is a solid carbide corner radius end mill designed for high-performance milling operations in ferrous and hardened materials. It features a 5/8-inch cutting diameter and a 1/8-inch (0.1250 inch) corner radius that reduces stress concentrations at the cutting edge, extending tool life and producing cleaner corner profiles. The 4-flute, right-hand spiral configuration provides efficient chip evacuation and a smooth surface finish. An AlTiN coating adds thermal resistance and hardness at elevated cutting temperatures. This tool is used by machinists and CNC operators in job shops, tool-and-die, and production machining environments.

This end mill is suited for milling slots, pockets, and contoured features where a radiused corner is required rather than a sharp 90-degree edge. The long-length geometry, with a 2-1/8-inch length of cut and 4-5/8-inch overall length, accommodates deeper cavities and extended-reach applications. Centercutting capability allows direct plunge entry, giving operators flexibility in toolpath programming. The micrograin carbide grade supports use in hardened steel, stainless steel, cast iron, and similar demanding materials at aggressive feed-and-speed parameters.

Key Features

• 1/8-inch corner radius reduces edge chipping and improves part finish in radiused pocket applications
• AlTiN coating provides high-temperature oxidation resistance for dry or high-speed cutting
• Micrograin solid carbide substrate delivers rigidity and wear resistance in hard materials
• Centercutting design permits direct plunge entry without pre-drilling
• Right-hand cut, right-hand spiral, single-end configuration for standard CNC milling setups
• Long-length flute geometry reaches deep pockets and cavities

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for standard 5/8-inch straight-shank tool holders used in CNC machining centers and manual mills.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the tool holder collet or end mill holder is clean and free of chips before seating the shank. Torque retention screws or collet nuts to the tool holder manufacturer's specification. Verify runout with a dial indicator before beginning a production cut, and confirm cutting parameters match the workpiece material and machine spindle capability.