This listing is for one new blade. This can be a new 4 inch diameter 36 tooth carbide tipped circular saw blade with 1/2 inch arbor (hole) made for the Dremel Model 580 and 588 series table saws. This blade is made by Tenryu in Japan exclusively for and distributed by ZimbyoProducts. Legendary Tenryu quality is clearly evident on this beautiful blade. The width of the carbide teeth is only 0.059 inch (1.5 mm) and the plate thickness is 0.055 inch (1.4 mm). The narrow cut minimizes subject material wastage. The blade is designed for cutting all hard and soft wood, plywood, acrylic and plastic, but now not metal. The Craftsman Model 572-2474 and the Bernard Law Montgomery Ward Power Kraft Model TDR97501 table saws were made by Dremel and likewise use this blade. Carbide tooth grind is ATB (Alternate Top Bevel) with 10 degree hook angle for both cross grain cutting and ripping. In my opinion hammer tensioned steel plates for true run. Tenryu’s super fine honing leaves a mirror like finish at the carbide for clean and burn/melt free cuts. Latest feedback: “You get what you pay for and this blade delivers! Super cuts even in 3/4 inch oak.” “Outstanding quality.” “Absolute high quality.” We include instructions for this blade. Please follow all safety instructions that were provided by the saw manufacturer.