Vermont American 26131 10mm Arbor 5-1/2-Inch 18 Tooth Xtend Cordless Circular Saw Blade XTEND cordless series circular saw blades are specially designed for optimal performance in portable cordless saws Blades feature scalpel-sharp teeth and a mirco kerf edge to cut with less drag and resistance than standard circular saw blades, yielding up to 40 percent more cuts per battery charge Blade design also enhances performance of corded portable saws