IVY Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools. IVY Classic High-Carbon Steel and Bi-Metal Cobalt Advantedge (Registered Trademark) jig saw blades are designed for outstanding cutting performances. The High-Carbon Steel blades feature a high-carbon alloy-steel blade and precision ground teeth while the Bi-Metal Cobalt Advantedge blades feature a cobalt matrix cutting edge and shatterproof teeth. The assorted five-piece sets feature two Bi-Metal blades which cut metals of varying thickness and three High-Carbon Steel blades which cut wood and laminates in different styles. These outstanding blades are compatible with all T-Shank/ U-Shank jig saws including Bosch, Dewalt, Craftsman, Makita, Metabo, Milwaukee and Porter Cable.