MAKITA® BLUEMAK® Circular Saw Blades feature a blue coating which resists "pitch" build-up and reduces friction during cutting. It also has an added advantage of eliminating corrosion. BLUEMAK® blades are fully hardened and tensioned. They absorb impact and remain flat and true during the toughest applications. They feature teeth constructed from high-grade tungsten carbide with low wear rate which extends blade life. The teeth are precision honed for a sharper, longer lasting edge. Their thin-kerf design creates less waste while reducing the amount of feed pressure required. Specifications Blade Diameter: 85 mm, Bore Diameter: 15 mm, Kerf Thickness: 1.0 mm, Plate Thickness: 0.7 mm, Tooth Count: 20T, Tooth Configuration: ATB (Alternate Top Bevel), Safety Information Maximum RPM: 2,240, Recommended PPE (Personal Protective Equipment):, Safety Glasses, Safety Gloves, Hearing Protection, Respiratory Protection, Machine Suitability MAKITA® Cordless 12 Volt-Max Circular Saws:, HS301D,