Woodruff keys are used to connect our precision shafting to other machine parts, including gears and pulleys. Manufactured from 303 stainless steel, our woodruff keys offer superior corrosion resistance and are ideal for a wide range of applications including turbines, impellers, power tools and many types of industrial machinery. Choose from full radius or flat bottom in inch sizes from .250 to .625, in depths from 0.728 to .1669.