Sandvik Coromant’s expansions to its milling product lines include new tool diameters and innovative insert grades and geometries. The CoroMill 490 system offers additional tool diameters ranging from 0.787 to 4.921 in. Insert geometries introduced in the GC2030, GC2040, and GC1030 grades offer increased performance in stainless steel machining. The CoroMill 345, a 45° face mill, features inserts for cast iron machining and a mirror-finishing geometry for steel. Cylindrical and Weldon shank cutters will also be released. By using inserts with eight cutting edges, the CoroMill 345 provides economic, reliable performance in applications ranging from roughing to mirror-finishing. It comes in diameters of 1.5 to 10 in. The CoroMill 316 includes the 3/8 to 0.984-in diameter range, with an extended range of carbide milling heads for application with new chamfering radius and larger-diameter corner radius end mills. Carbide shanks will complement the existing steel shank assortment.