This Tungsten Carbide-Tipped (TCT) construction circular saw blade is hardened and tempered to ensure a long life. High-quality precision-ground carbide teeth make the blade robust and it has a general purpose thin kerf for rapid cutting. Designed for use on hardwood, softwood, MDF, chipboard, composites and wood with nails. Compatible with most 305mm circular saws with a 30mm bore. EN847-1 Standard.