MK Morse ZWEP441418MC Master Cobalt Portable Band Saw, Bi-metal 44-7/8-Inch X 1/2-Inch X .020-Inch Variable TPI 14/18, Pack of 3 Fit all standard portable band saw machines Cut pipe tubing and solids made of any machinable metal High speed steel is electron beam welded to a flexible backer to create longer lasting, faster cutting blades resistant to the effects of shock and heat.