This Tungsten Carbide-Tipped (TCT) circular saw blade is hardened and tempered to ensure a long life. High-quality precision-ground carbide teeth make the blade robust for rapid cutting. Designed for use on hardwood softwood MDF chipboard and plywood. Compatible with most 210mm circular saws with a 30mm bore including Stock No. 83677. EN847-1 Standard.PTDDRPDIR21676