IVY Classic 28322 R810P 8-Inch 10/14 TPI Metal/Plastic Cutting Reciprocating Saw Blade, Bi-Metal, 5-Pack Cuts metal above 1/8-inch and plastic, Cobalt Advantedge (Registered Trademark) Bi-Metal with 8% cobalt matrix II cutting edge electron welded to alloy-steel back Precision milled shatterproof teeth with Rockwell Hardness of 65-67 HRC Fits all 1/2-inch shank reciprocating saws Bi-Metal cutting edge made in USA on imported blade, 10/14 TPI, 8-inch length x 3/4-inch width x .050-inch thickness