Harvi Endmill1/8 X 1/8 X 1/4 X 1-1/2 Pvd Coated Carbide P15-30 M15-30 K15-30 Coated Carbide Grade With Thick Pvd Coating And Optimized Chemistry And Process For Increased Wear Resistance. Outstanding Protection In Milling Stainless Steel To Mitigate Crater, Docn (Depth-Of-Cut Notching), And Flank Wear. Excellent Performance Up To 52 Hrc