The sharpness of these end mills reduces the occurrence of burrs, produces remarkable surface finish, and improves tool life to outperform 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 a 2mm dia.) and in 40, 45, and 50mm lengths that are ideal for automatic lathes.