Accupro 12183222 Corner Radius End Mill 3/16 in 4 Flute Altin

Product Description

The ACCUPRO 12183222 is a solid carbide corner radius end mill designed for precision milling operations in demanding shop environments. It features a 3/16 inch diameter with a 0.03 inch corner radius, a 1-1/8 inch length of cut, and a 3 inch overall length. The 4-flute, right-hand spiral design with a 40-degree helix angle promotes efficient chip evacuation and stable cutting performance. An AlTiN coating provides heat resistance and extended tool life when cutting hardened steels, stainless alloys, and other abrasive materials. This tool is centercutting and capable of plunge entry. It is used by machinists and CNC operators in production and job-shop settings.

This end mill suits applications requiring a consistent corner radius on pocketing, slotting, contouring, and profiling operations. The extra-long length of cut allows access to deeper features without tool changes. The single-end configuration and 3/16 inch shank diameter make it compatible with standard collet chucks and tool holders of the same bore size. It is well suited for mold and die work, aerospace components, and precision machined parts where sharp internal corners must be replaced with a controlled radius to reduce stress concentrations.

Key Features

• Solid carbide micrograin construction for rigidity and edge retention
• AlTiN coating for high-temperature performance and extended tool life
• 0.03 inch corner radius reduces stress concentration at pocket floors and sidewalls
• 4-flute, 40-degree right-hand helix for smooth cutting action and chip removal
• Centercutting design allows direct plunge entry into workpiece material
• Extra-long length type with 1-1/8 inch LOC for deeper feature access

Compatibility

Designed as a direct-fit replacement or standard selection for 3/16 inch bore collet chucks, ER collet systems, and shrink-fit tool holders used in CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the tool from the holder. Verify collet bore size matches the 3/16 inch shank diameter and that the tool is seated to the correct gauge length before clamping. Do not exceed tool manufacturer feed and speed recommendations for the workpiece material and coating type.