Versatile and easy-to-use. These 6 piece cutter sets are designed to perform the 3 functions shown. Our standard sets cut 1/4″ wide x 3/8″ Deep tongue and groove. Our common minor diameter requires no fence adjustment when changing from cope to pattern cuts (3/8″ tongue only). Counterclockwise rotation with wood fed face down. Optional tongue and groove cutter sets in a variety of sizes are available.