Niagara Cutter N57529 Carbide Corner Radius End Mill, Inch, Weldon Shank, AlTiN Finish, Roughing and Finishing Cut, 40 Degree Helix, 4 Flutes, 4 Overall Length, 0.438 Cutting Diameter, 0.438 Shank Diameter, 0.02 Corner Radius Size: 7/16 Model: 57529 Misc.

The Niagara Cutter STRN440 Stabilizer TiAlN-coated carbide corner radius end mill with four flutes features an extended-reach neck style and the patented Stabilizer flute design, which combines variable helix angles and unevenly spaced flutes of differing lengths to allow deeper cuts at higher speeds on high-temperature alloys. The helix angle varies from tooth to tooth to reduce tool vibration and provide efficient chip removal. The unequal length and spacing of the flutes creates an out-of-phase cutting action that further reduces tool vibration and extends tool life. The TiAlN coating resists heat better than TiN and TiCN coatings, increasing tool life and performance. It also offers increased hardness compared to TiN and may reduce the need for lubricants based on the application. The carbide substrate is harder than high-speed or cobalt steel, making it more wear resistant at high speeds and hot temperatures, providing longer tool life. The Stabilizer flute geometry, carbide substrate, and TiAlN coating make the STRN440 suitable for machining the high-temperature alloys used in the commercial aircraft, aerospace, and defense industries

The four-flute design is suitable for fine finishing. The extended-reach neck style provides greater access to recessed areas of the workpiece than tools with a standard neck style. Corner radius end mills have a square end with rounded corners on the cutting edges to reduce chipping and extend the life of the tool. The center-cutting design has cutting teeth at the end of the tool, so it can be fed into the workpiece like a drill bit. The tool has an eccentric primary relief feature that provides better support behind the cutting edge than a flat relief, reducing tooth breakage in deep cuts. Cutting diameter tolerance is +0.000 to -0.002. The STRN440 comes with a round shank for shank diameters smaller than 3/8‚¬ and a Weldon shank on shank diameters of 3/8‚¬ or larger.

End mills are designed to remove