Accupro 12182354 Corner Radius End Mill 1 in 4 Flute Carbide

Product Description

The ACCUPRO 12182354 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. It features a 1 inch cutting diameter, a 1.75 inch length of cut, and a 0.09 inch corner radius that reduces stress concentrations at the base of milled features. The 4-flute, right-hand spiral configuration with a 40-degree helix angle promotes efficient chip evacuation and smooth surface finishes. The bright/uncoated finish suits applications where coating-related dimensional buildup is a concern. Machinists and tool-and-die professionals install this tool in CNC machining centers and manual mills for profiling, slotting, and contouring work requiring radiused corners.

This end mill is suited for use in job shops, production machining environments, and tool rooms where tight tolerances are required on corner geometry. Its centercutting design allows plunge entry, making it practical for a range of milling strategies including pocket milling and ramping. The micrograin carbide substrate supports rigidity and edge retention in demanding cuts. The 1 inch shank diameter fits standard ER and end mill holders commonly found in CNC machining centers across both prototype and production settings.

Key Features

• 1 inch cutting diameter with tight mill diameter tolerance of +0.000000 to -0.002500 inches
• 0.09 inch corner radius with a tolerance of 0.00150 inches for consistent radii across parts
• 4-flute right-hand spiral with 40-degree helix angle for efficient chip flow and surface finish quality
• Centercutting design enables plunge milling and flexible toolpath strategies
• Micrograin solid carbide construction for edge retention and dimensional stability
• Bright/uncoated finish — no coating buildup on cutting edges or corner radius

Compatibility

Designed as an OEM-style solid carbide corner radius end mill suitable for use in standard 1 inch end mill holders and collet chucks on CNC machining centers and manual mills.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Seat the shank fully into the holder and apply recommended tool-holder torque per the holder manufacturer's specifications. Inspect the corner radius and cutting edges for chips or damage before each use.