Accupro 12180331 Corner Rounding End Mill 1/4 in 2 Flute

Product Description

The ACCUPRO 12180331 is a solid carbide corner rounding end mill designed to machine precise convex radii on workpiece edges. With a 0.072-inch corner radius and a 0.25-inch mill diameter, this tool removes material in a controlled arc profile rather than a flat cut, producing smooth, rounded edges directly from the milling operation. The double-end configuration provides two usable cutting ends, extending tool life before replacement is required. A titanium carbonitride (TiCN) coating reduces friction and improves wear resistance during high-speed cutting applications. This tool is installed and operated by machinists and tool-and-die professionals working with CNC or manual milling equipment.

This end mill is suited for edge-finishing operations on ferrous and non-ferrous materials where a consistent corner radius is required. The right-hand cutting and right-hand flute direction make it compatible with standard spindle rotation on vertical machining centers and manual mills. The 0.25-inch shank diameter fits standard collets and end mill holders commonly found in shop environments. The 0.106-inch tip diameter allows the tool to reach into tighter edge geometries without interference from the shank body.

Key Features

• 0.072-inch corner radius for precise convex edge profiling
• Solid carbide construction for rigidity and wear resistance
• TiCN coating reduces friction and extends cutting life
• Double-end design provides two cutting ends per tool
• Right-hand cut and right-hand flute direction for standard spindle use
• 0.25-inch shank fits standard collets and end mill holders

Compatibility

Designed for use in standard 1/4-inch collets and end mill holders on CNC vertical machining centers and manual milling machines with right-hand spindle rotation.

Installation Notes

This tool is installed by machinists using standard collet or end mill holder tooling systems. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank to the full recommended engagement depth in the collet or holder before tightening. Verify spindle rotation direction matches the right-hand cutting geometry of this tool before starting the cut.