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 Brand TTC Size 15/32" Shank Diameter 1/2" Flute Length 1" Finish Coating Uncoated Tool Material M42 8% Cobalt No. of Flutes 4 Center Cutting Yes Cutting Direction Right Hand Flute Shape Spiral Flute Manufacturing Method The end cutting edges are ground Series [D46] Tolerance_Shank Diameter 0.000 / -.0003 Tolerance_Diameter -.0005-.0015 Country of Origin Import Weight 0.25 lbs. 。 。 。. TTC 15/32'x 1/2'x 4-1/8' M42 Cobalt 4 Flute Double End Mill: Home Improvement. TTC 15/32"x 1/2"x 4-1/8" M42 Cobalt 4 Flute Double End Mill: Home Improvement. Right hand (clockwise rotation) cutting direction. 。 Applications For milling slots. grooves and other similar Features . Designed for use in machine tools. Features Right hand (clockwise rotation) cutting direction. Made as four flute. double ended.