Metal Cutting Circular Saw Blades For Cutting Stainless Steel 48 Tooth Carbide Tipped Blade - 7 in (20 mm arbor)..-Note: Designed for use with Evolution saws or other low RPM saws. 0.07 in kerf, 3900 RPM 3900 RPM 48 Carbide Teeth, .070-Inch Kerf 20mm Arbor Size