4 Flute M42 8% Cobalt Double End Mill
TTC PRODUCTION 4 Flute M42 8% Cobalt Double End Mill-Tool Material: M42 8% Cobalt Size: 5/16 Number of Flutes: 4 Flute Length: 3/4 Flute Shape: Spiral flute

4 Flute M42 8% Cobalt Double End Mill

Item #: 08-218-050
Size Type: Fractional
Size: 5/16"
No. of Flutes: 4

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  • For milling slots, grooves and other similar features.
  • Designed for use in machine tools.


  • Right hand (clockwise rotation) cutting direction.
  • Made as four flute, double ended, spiral flute cutters.
  • Sized to offer good rigidity.
  • The spiral flute design offers a faster and smoother cutting action.
  • The end cutting edges are ground to permit these end mills to be center cutting.
TTC PROD D46 4 Flute M42 8% Cobalt Center Cutting Double End Mills
Product Specifications
Size Type Fractional
Size 5/16"
No. of Flutes 4
Length of Cut 3/4"
Shank Diameter 3/8"
Tool Material M42 8% Cobalt
Finish Coating Bright
Center Cutting Yes
Single or Double End Double
Overall Length 3-1/2"
Corner Radius 0
Helix Angle 30°
Cutting Direction Right Hand
Flute Shape Spiral Flute
Manufacturing Method The end cutting edges are ground
Model # 08-218-050
Prop. 65 Yes
Series [D46]
Tolerance_Cutting Diameter -.0005 - .0015
Tolerance_Shank Diameter 0.000 / -.0003
Type 4 Flute M42 8% Cobalt Double End Mill
Weight 0.125 lbs.
Country of Origin Import
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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