Product Description Makita B-15724 136mm (5-3/8″) 30T METAL CUTTING TCT SAW BLADE Designed to cut ferrous metals these blades are produced with a specially formulated carbide tip design that resists breakage on impact. These specialized blades are designed to last longer when cutting mild steel, sheet metal, roofing iron, pipe, channel and RHS Makita SPECIALIZED metal cutting blades cut quicker cut cleaner andoutlast traditional abrasive discs up to 30 times The specially formulated carbide teeth are precision ground for fast clean cutting, low sparking and minimal swarf production. They provide cool cuts with burr free edges and a reduced cost per cut. Features: Low sparking and minimal dust production Cool cuts with burr free edges Reduced cost per cut Specifications: Diameter: 136mm Bore Size: 20mm Kerf Thickness: 1.5mm Body Thickness: 1.2mm Rake: 0 Tooth Count: 30 Tooth Shape: MTCG Max Speed: 4500RPM