5-3/8" - 30 Tooth Carbide Tipped Metal Cutting Blade with 20MM Arbor and 1/2", 5/8”, 10MM Bushings D053830FMX
QiNiuTools 3 Inch 76mm HSS Circular Saw Blades with 2/5-Inch Arbor, 60T High Speed Steel for Wood Plastic and Aluminum Fast Smooth Cutting - Amazon.com