Diablo 9" 3TPI Carbide Tipped Recip Saw Blades for Pruning & Clean Wood 3Pk Forstner Bits Heavy gauge dual component steel construction Heavy gauge dual component steel construction the combination of a 3 gauge top flange and a 7 gauge stirrup means this hanger is built to handle the elevated loads common in engineered lumber framing without compromising connection integrity The carbide tipped (HW) construction means this bit handles not only solid hardwood and softwood but also MDF the blade maintains cutting speed through sticky or sappy wood without forcing extra pressure from the operator Made in the United States manufactured to consistent quality standards for professional grade reliability