Accupro 12182608 Corner Radius End Mill 1/2 in 4 Flute

Product Description

The ACCUPRO 12182608 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hardened materials. With a 1/2 inch cutting diameter, 1 inch length of cut, and a 0.02 inch corner radius, this tool reduces stress concentrations at part corners and extends tool life in demanding applications. The 40-degree helix angle promotes smooth chip evacuation and reduces cutting forces. An AlTiN coating provides high heat resistance and wear protection, making this end mill well suited for dry or semi-dry machining at elevated speeds. Machinists and CNC operators in job shops, aerospace, and die-mold environments will find this a reliable choice for finishing and semi-finishing passes.

This end mill is used in vertical and horizontal machining centers for slotting, profiling, and contouring operations where a radiused corner is required on the finished workpiece. The single-end, centercutting design allows for plunge entry and versatile toolpath strategies. It is commonly applied in steel, stainless steel, cast iron, and titanium alloys. The 1/2 inch shank diameter fits standard ER collet chucks, hydraulic chucks, and shrink-fit holders common in production CNC setups.

Key Features

• 0.02 inch corner radius reduces corner chipping and stress risers on finished parts
• AlTiN coating delivers high-temperature hardness and oxidation resistance for dry or minimal-coolant machining
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Micrograin solid carbide substrate for improved wear resistance and edge retention
• Centercutting geometry allows direct plunge entry without a pre-drilled pilot hole
• Right-hand cut, right-hand flute spiral for use in standard CNC milling spindles

Compatibility

Designed as an OEM-style replacement or direct-fit solid carbide corner radius end mill for standard 1/2 inch collet, hydraulic, or shrink-fit toolholding systems used in CNC vertical and horizontal machining centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer or spindle lock is engaged before inserting or removing the end mill. Verify the shank is seated to the correct gauge-line depth in the holder and that collet torque specifications for the toolholder manufacturer are followed. Inspect the cutting edges under magnification before use and do not run a chipped or worn tool.