5-PC. T-Shank Bi-Metal Jig Saw Blade Set. It is made of bi-metal and has a T-shank. It is suitable for cutting wood, metal, and plastic. Blades have a universal tang and fit Milwaukeeยฎ Jig Saws and other popular brands. Includes one each T-Shank blades: 3″ 18 TPI blade, 3″ 24 TPI blade, 3″ 14 TPI blade, 4″ 6 TPI blade, and 4″ 10 TPI blade.