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Niagara Cutter A245 Carbide Square Nose End Mills, Inch, TiCN Finish, Finishing Cut, 45 Degree Helix, For Use With Aluminum, Non-Ferrous Metals

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Product Specifications
Cutting Direction
Right Hand
Specific Uses For Product
Slot Milling
End Cut Type
Center Cutting
Finish Types
Material Type
Cutting Angle
45  Degrees
Brand Name
Niagara Cutter
Manufacturer Series Number
Compatible Material
Aluminum, Non-Ferrous Metals
Shank Type
Cut Type
System of Measurement

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1/8" 1/8" 0.25" 1.5" 2 61442 B0006TQJLY 6 $17.77 Buy Options
5/32" 3/16" 0.313" 2" 2 61444 B0006TQJMS 1 $19.96 Buy Options
3/16 " 3/16" 0.3125" 2" 2 61446 B0006TQJNM 1 $21.71 Buy Options
7/32" 1/4" 0.375" 2.5" 2 61448 B0006TSCAU 1 $28.73 Buy Options
1/4" 1/4" 1.25" 4" 2 61452 B0006TSCH8 1 $42.18 Buy Options
1/4" 1/4" 0.375" 2.5" 2 61450 B0006TSCEG 4 $26.73 Buy Options
9/32" 5/16" 0.438" 2.5" 2 61453 B0006TSCK0 1 $26.61 Buy Options
5/16" 5/16" 0.4375" 2.5" 2 61455 B0006TSCNW 1 $29.13 Buy Options
5/16" 5/16" 2.250" 4" 2 61458 B0006TSCSW 2 $61.84 Buy Options
5/16" 5/16" 1.25" 3.5" 2 61457 B0006TSCQY 3 $55.51 Buy Options
11/32" 3/8" 0.500" 2.5" 2 61459 B0006TSCUK 1 $29.46 Buy Options
3/8 " 3/8" 0.5" 2.5" 2 61461 B0006TSCXM 1 $31.83 Buy Options
3/8 " 3/8" 1.5" 4" 2 61463 B0006TSCZU 1 $64.27 Buy Options
13/32" 7/16" 0.563" 2.75" 2 61464 B0006TSD0Y 1 $42.36 Buy Options
7/16" 7/16" 0.5625" 2.75" 2 61466 B0006TSD2M 1 $40.33 Buy Options
15/32" 1/2" 0.625" 3" 2 61468 B0006TSD5Y 1 $47.33 Buy Options
1/2 " 1/2" 3.125" 6" 2 61473 B0006TQJ64 1 $112.18 Buy Options
1/2 " 1/2" 2" 4" 2 61472 B0006TQJ4Q 1 $83.27 Buy Options
5/8" 5/8" 0.750" 3" 2 61474 B0006TSDC2 1 $75.65 Buy Options
5/8" 5/8" 2.5" 5" 2 61476 B0006TSDDQ 1 $121.68 Buy Options

Key Features

  • 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
  • Titanium carbon nitride (TiCN) coating lubricates the end mill for high-temperature stability and offers the abrasion resistance required to machine aluminum and other nonferrous materials
  • Square nose end mills (also called square end) create sharp, unrounded cuts

Product Description

The Niagara Cutter A245 TiCN-coated carbide square nose end mill has two flutes, a wiper flat, and a 45-degree helix, making it suitable for high-performance, 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. The TiCN coating offers the increased hardness and abrasion resistance required to machine aluminum and other nonferrous materials compared to uncoated end mills. 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.

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