NTK's S-Mill Series carbide end mills, the latest addition to our quality selection of Swiss Tools. The sharpness of these end mills reduces the occurance of burrs, produces remarkable surface finish, and out lasts the competition. S-Mills are available in 2,3, and 4 flute designs with a range of diameters to cover a wide variety of applications (2 flute available in 2mm dia.) and in 40, 45, and 50 mm lengths that are ideal for automatic lathes. The AC3 (thing TiAcrN + TiAlN coat) carbide grade is ideal for side milling, slotting, and profiling in steel and stainless steel materials.