Wardwell made band saw filers, saw grinders, saw setters, and other machinery. The Wardwell 57T circular saw grinder sharpens as many as 250 saws (.015 thick) simultaneously. It was rigidly built for low vibration and long life. Precise and accurate, it sharpens within a variation of plus or minus .001” of the exact diameter of the saw. The Model 57T-B is the bench top model.