Lenox® 7 1/4" Dia Circular Saw Blade with 68 teeth is made of thin steel for durability and is used to cut metals in faster way. Blade with 5/8" arbor is titanium carbide tipped that resists material build up and maintains sharpness of blade for long time. Blade deletes the necessity of secondary grinding and reduces material burning. It is used in sheet metal, thin walled pipe, metal roofing and metal decking. Blade provides less burring than abrasive blades and is resharpenable. It runs at a speed of 5800 RPM.