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Niagara Cutter N89974 Carbide Ball Nose End Mill, Stub Length, Uncoated (Bright) Finish, Roughing and Finishing Cutting, 30-Degree, 4-Flute, 2.5" OAL, 0.375" Cut Diameter, 0.375" Shank Diameter
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*Price and Stocks may change without prior notice
*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
- 7 Day Return Policy
- All products are genuine and original
About Niagara Cutter N89974 Carbide Ball Nose End
The Niagara Cutter CSDB430 uncoated carbide double-end ball nose end mill with stub length has four flutes for a fine finish and a 30-degree helix angle for general-purpose applications. Four flutes produce a better finish than fewer flutes. The stub length increases tool strength and makes it less likely to break in the material being machined. It is best used when depth of cut is shallow. The double-end design has cutting edges on both ends, allowing a new cutting surface to be substituted when the first shows wear, which doubles the tool’s life compared to single-end ball nose end mills. 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, this uncoated tool can be used on a broad range of materials and provide an economical alternative to coated tools. The tool’s ball nose creates contoured surfaces where sharp corners are not required. 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 30-degree helix angle supports general-purpose applications. It balances lower angles’ strong cutting edge for difficult-to-machine materials with higher angles’ increased cutting action. Cutting diameter tolerance is +0.000" to -0.002". The round shank accommodates a range of tool holders. 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-cutt
