IVY Classic 28634 R966C 9-Inch 6 TPI Demolition Reciprocating Saw Blade (Nailed Wood), Bi-Metal, 1/Card Cuts nail-embedded wood, 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, 6 TPI, 9-inch length x 7/8-inch width x .062-inch thickness