NIAGARA COB 1-1/4" x 1-1/4" x 2-1/2" x 8- 1/2" 3 Flute TiCN End Mill
COB 1-1/4X1-1/4X2-1/2X8-1/2 3FL END MILL-NIAGARA

NIAGARA COB 1-1/4" x 1-1/4" x 2-1/2" x 8- 1/2" 3 Flute TiCN End Mill

Item #: 08-089-115
Size Type: Fractional
Size: 1-1/4"
Length of Cut: 2-1/2"

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  • Roughing end mills allow for heavier cuts and remove more material.
  • Ideal cutters for today's more rigid poweful CNC machinery.
  • Work piece materials identified at the sku level of each end mill.


  • Right hand cut and helix.
  • Select from the drop down box range of helix and coatings to improve performance & productivity and tool life.
Product Specifications
Size Type Fractional
Size 1-1/4"
Length of Cut 2-1/2"
Shank Diameter 1-1/4"
Tool Material Cobalt
Finish Coating TiCN
No. of Flutes 3
Overall Length 8-1/2"
Helix Angle 36°
Application Rough milling
Center Cutting Yes
Chamfer Dimensions 0.045"
Cutting Direction Right Hand
Diameter 1-1/4"
Cutting End Shape Square
End Type Square
Flute Length 2-1/2"
Helix Direction Right Hand
General Application Milling
Length 8-1/2"
Model # N89115
Neck Diameter 1.05
Neck Length 6
Nose Type Square
Reach_Inch 6"
Prop. 65 Yes
Reach 6"
Series RHLC754
Shank Style Straight Shank
Type Roughing End Mill
Weight 2.149 lbs.
Workpiece Material Steel, Die Mold Steels, Cast Iron, Aluminum (6061-T6, 7075-T6), Copper
Prop 65 Warning Many metalworking products do contain metals that are included in the latest Prop 65 warning. Exposure to the elements can be harmful. May cause cancer and reproductive harm.

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