This is a great set for the woodworker just starting out or anyone needing a commercial quality set of bits. Precisely machined sharp YG8 cemented carbide blade makes clean and accurate cuts on wood. Hardened solid alloy steel main construction for durability and long service life. Sealed bearing for smooth and aligned operations. Comes with wooden case for easy storage and organization. Perfect for edging, trimming, veining and grooving in all woodworking projects for both professional carpenters and hobbyists