The DEWALT DT20421 PCD Circular Saw Blade has been designed for use with the DEWALT DCS571 Compact Circular Saw. With 4 PCD (Polycrystalline Diamond) teeth, longer-lasting than TCT teeth, and creates less dust than other blades. Suitable for cutting: fibre cement, Marley Eternit, HardieBackerreg;, Trespareg;, laminated flooring, melamine, soft and hardwoods, MDF, plywood and chipboard. Specification: Diameter x Bore: 115 x 9.5mm.Teeth: 4.