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Niagara Cutter SBM855 Cobalt Steel End Mill, General Purpose, TiCN Coated, 2 Flutes, Ball End

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ASIN B004CM06MY

Specifications for this item
Finish Types
TiCN
Material Type
Cobalt Steel
Part Number
NiagaraSBM855
UNSPSC Code
27112803
Brand Name
Niagara Cutter

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Key Features

  • Two flutes offer better chip-carrying capacity than end mills with more flutes, enhancing the tool's ability to remove material
  • Titanium carbon nitride (TiCN) coating lubricates the end mill for high-temperature stability and offers better abrasion resistance than TiN coating
  • Cobalt steel resists abrasion and high cutting temperatures, and has higher feed rates than high-speed steel
  • Ball nose end mills (also called ball end) create contoured surfaces
  • Center-cutting design allows the end mill to plunge into material like a drill bit while also performing conventional surface milling

Product Description

The Niagara Cutter SBM855 TiCN-coated cobalt steel metric end mill has two flutes, a 30-degree helix angle and a ball end to shape contoured surfaces on a wide range of materials, including high-temperature alloys. The TiCN coating lubricates the end mill for high-temperature stability, and provides more hardness and abrasion resistance than the TiN coating. The cobalt steel substrate can be run at faster speeds and stays sharp longer than high-speed steel tools, while offering greater resistance to heat and abrasion.

The end mill’s 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. In contouring applications where the depth of cut is shallow, the end mill will create a fine finish. The 30-degree helix angle offers general-purpose machining. It balances lower angles’ strong cutting edge for difficult-to-machine materials with higher angles’ increased cutting action. The tool’s ball nose creates contoured surfaces, where sharp corners are not required, while the center-cutting design has cutting teeth at the end of the tool that support making pocket cuts, profiling, and slotting. Cutting diameter tolerance is +0.025 mm to -0.000 mm. The end mill has a Weldon shank. While the cutting diameter is metric, the shank is sized in inches.

End mills are designed to remove material and create multi-dimensional shapes and 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 can range 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 create three-dimensional shapes and profiles, and make plunge cuts similar to a drill bit. Non-center-cutting end mills are for applications such as peripheral milling and finishing, but cannot make plunge cuts.

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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