Accupro 12181344 Corner Radius End Mill 1/4 in 2 Flute Carbide

Product Description

The ACCUPRO 12181344 is a solid carbide corner radius end mill designed for precision milling operations across a wide range of materials. It features a 1/4 inch mill diameter, a 3/4 inch length of cut, and a 0.09 inch corner radius that reduces stress concentration at the cutting edge and extends tool life compared to sharp-corner end mills. The 2-flute, right-hand spiral configuration promotes efficient chip evacuation, and the TiCN coating increases surface hardness and wear resistance. Overall length is 2.5 inches with a 1/4 inch shank diameter. Micrograin carbide substrate provides the rigidity needed for demanding cuts.

This end mill is suited for ferrous and non-ferrous machining applications including profiling, slotting, and contouring. The centercutting geometry allows plunge entry, making it practical for pocketing and ramp-entry operations. It is a single-end tool intended for CNC machining centers and manual mills where a radiused corner profile is required. The 40-degree helix angle improves cutting action and finish quality on harder materials. Typical users include machinists and tool-and-die shops working in job-shop and production environments.

Key Features

• 0.09 inch corner radius reduces edge chipping and extends tool life versus sharp-corner geometry
• TiCN coating for increased hardness, wear resistance, and performance on harder workpiece materials
• Centercutting design allows direct plunge entry and ramp interpolation
• 2-flute right-hand spiral promotes open chip flow and reduces heat buildup
• Micrograin solid carbide substrate delivers rigidity and dimensional stability
• 40-degree helix angle improves surface finish and cutting efficiency

Compatibility

Designed as an OEM-style replacement or standard tooling selection for CNC machining centers and manual milling machines accepting a 1/4 inch straight shank end mill with a 0.09 inch corner radius profile.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for tool holding and runout tolerance. Ensure the machine spindle is fully stopped and locked out before changing tooling. Use a properly sized collet or end mill holder to achieve the shank diameter tolerance range specified for this tool. Verify tool projection and stick-out are minimized to reduce deflection during cutting.