Abstract: A dado lathe is provided for use with a table saw in performing numerous cutting operations on a piece of wood stock. The dado lathe device includes a pair of parallel, spaced apart guide rails upon which a frame is slidably mounted. The frame includes vertically and longitudinally adjustable headstock and tailstock spindles for rotatably supporting the wood stock. A drive system selectively rotates the wood stock while moving the frame longitudinally along the guide rails. Using the dado lathe device, a square wood stock can be turned to a round wood stock, spiral and grooves can be cut in the wood stock, the wood stock can be tapered, and beading and reeding can be cut along the length of the wood stock.