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clearance S545R S545R-0.375-D3-R030.0-Z5 Cutter Niagara Carbide 1" Length, Overall 2-1/2" Diameter, Shank 3/8" Diameter, Cutting 3/8" Flutes, 5 Finish, AlTiN Mill, End Radius Industrial & Scientific
clearance S545R S545R-0.375-D3-R030.0-Z5 Cutter Niagara Carbide 1" Length, Overall 2-1/2" Diameter, Shank 3/8" Diameter, Cutting 3/8" Flutes, 5 Finish, AlTiN Mill, End Radius Industrial & Scientific
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Material Carbide
Finish Type AlTiN
Cutting Diameter 0.38 Inches
Number of Flutes 5
Size 3/8 inches x 3/8 inches x 1 inches x 2-1/2 inches

About this item

  • Corner radius end mills have cutting edges with rounded corners to reduce chipping and provide longer tool life
  • 45-degree helix provides efficient cutting action and chip evacuation for fine-finish peripheral milling
  • Five flutes produce a better finish than fewer flutes
  • Aluminum titanium nitride (AlTiN) coating lubricates the end mill for high-temperature stability and abrasion resistance, offering better heat resistance than TiN, TiAlN and TiCN coatings
  • Carbide can run at higher speeds than high-speed or cobalt steel, resisting wear and high cutting temperatures

Technical Details

Package Dimensions ‎3 x 0.71 x 0.71 inches; 2.4 Ounces
Item Weight ‎2.4 ounces
Manufacturer ‎Niagara Cutter
Country of Origin ‎USA

Product Description

The Niagara Cutter S545R AlTiN-coated carbide corner radius end mill has five flutes, a 45-degree helix angle and cutting edges with rounded corners for fine-finish peripheral milling on difficult-to-machine materials with a Rockwell hardness up to 50 HRC, including stainless steel, titanium and high-temperature alloys. 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 45-degree helix provides increased cutting action and chip evacuation compared to end mills with lower helix angles, as it moves excess material quickly up the spiral and away from the workpiece. Five flutes produce a better finish than fewer flutes. This tool is designed for peripheral finishing.

The AlTiN coating resists heat better than TiN, TiAlN 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. (AlTiN is suitable for a range of materials, but TiCN or uncoated end mills are recommended for machining aluminum.)The carbide substrate is harder than high-speed or cobalt steel, making it more wear resistant at high speeds and providing longer tool life. Cutting edges have an eccentric primary relief feature that provides better support than a flat relief, reducing tooth breakage in difficult-to-machine materials. 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. 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.

Brand Name Niagara Cutter
Compatible Material High- Temp Alloys, Stainless Steels, Steels, Steel Alloys, Titanium and Titanium Alloys
Corner Radius 0.03 inches
Cut Type Center Cutting , Square , Rounded , Finishing
Cutting Angle 45 degrees
Cutting Diameter 0.375 inches
Cutting Direction Right Hand
Ean 7010170000109
End Cut Type Center
Finish Type AlTiN
Global Trade Identification Number 07010170000109
Item Diameter 0.38 inches
Item Shape Cylindrical
Length 2.5 inches
Manufacturer Series Number S545R
Material Carbide
Measurement System Inch
Model Number N90958
Number Of Flutes 5
Number of Items 1
Part Number S545R-0.375-D3-R030.0-Z5
Shank Diameter 0.38 inches
Shank Type Cylindrical
Size 3/8 inches x 3/8 inches x 1 inches x 2-1/2 inches
UNSPSC Code 27112803

clearance S545R S545R-0.375-D3-R030.0-Z5 Cutter Niagara Carbide 1" Length, Overall 2-1/2" Diameter, Shank 3/8" Diameter, Cutting 3/8" Flutes, 5 Finish, AlTiN Mill, End Radius Industrial & Scientific

clearance S545R S545R-0.375-D3-R030.0-Z5 Cutter Niagara Carbide 1" Length, Overall 2-1/2" Diameter, Shank 3/8" Diameter, Cutting 3/8" Flutes, 5 Finish, AlTiN Mill, End Radius Industrial & Scientific

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clearance S545R S545R-0.375-D3-R030.0-Z5 Cutter Niagara Carbide 1" Length, Overall 2-1/2" Diameter, Shank 3/8" Diameter, Cutting 3/8" Flutes, 5 Finish, AlTiN Mill, End Radius Industrial & Scientific

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