SKU: CD-7410 - Cip-Saw Cobalt Bi-Metal Blades. These blades consist of Cobalt Alloy high speed steel teeth electron beam welded to a lower alloy, shock resistant backbone. Universal 1/2" shank. 10 teeth per inch ,3/4" wide, 4" long .035 thick. Wood, pvc, plastic,composite materials and nail embedded..