45-degree helix provides efficient cutting action and chip evacuation required to machine aluminum and other nonferrous materials
Two flutes offer better chip-carrying capacity than end mills with more flutes, enhancing the tool''s ability to remove material
Wiper flat on cutting edges for a smoother finish than conventional end mills
Square nose end mills (also called square end) create sharp, unrounded cuts
Carbide can run at higher speeds than high-speed or cobalt steel, offering increased wear resistance at high cutting temperatures

Technical Details

Product Details

Package Dimensions
Width : 1.4 inch
Height : 1.3 inch
Length : 4.6 inch

Shipping Weight: 1.15 pounds (View shipping rates and policies)

ASIN : B00A0P8PXE

Product Description

The Niagara Cutter A245 uncoated carbide square nose end mill has two flutes, a wiper flat, and a 45-degree helix, making it suitable for fine-finish cuts on aluminum and other nonferrous materials. Its 45-degree helix angle offers increased cutting action compared to end mills with lower helix angles, as it moves excess material quickly up the spiral and away from the workpiece. The two flutes have better chip-carrying capacity than end mills with more flutes while offering additional support when the tool goes deep into the material in applications with a high depth of cut. A wiper flat on the cutting edges provides a smoother finish to the workpiece than conventional end mills. The tool’s square end has straight cutting edges that create sharp, unrounded cuts. The center-cutting design has cutting teeth at the end of the tool, so it can be fed straight into the workpiece like a drill bit.
The carbide substrate is harder than high-speed or cobalt steel, making it more wear resistant at high speeds and providing longer tool life. With no coating or surface treatment, the tool features just the base material for general-purpose applications in aluminum and nonferrous materials. It can provide an economical alternative to higher-priced coatings. Cutting diameter tolerance is +0.000 to -0.002”. The round shank accommodates a variety of holders.
End mills are designed to remove material and create three-dimensional shapes or profiles. They have cutting edges along the outside diameter and flutes that remove chips from the cutting area and allow cooling fluids to enter. If heat is not reduced effectively, the tool’s cutting edges will dull and additional material buildup can occur. The number of flutes typically ranges from two to eight. Two-flute designs offer the most efficient chip removal, but more flutes provide a smoother finish. The shank is the end of the tool held in place by a tool holder or machine. Center-cutting end mills can make plunge cuts similar to a drill bit.
Niagara Cutter has been designing and manufacturing precision cutting tools since 1954. Specializing in end mills, cutting mills, and saws, the company is based in New York and manufactures its tools at facilities in Pennsylvania and Massachusetts. This allows the company control over production, from substrate to coating, which is essential for customers in a variety of industries, especially aerospace and automotive.