Circular Saw Blade, Blade Dia. 8 in, Max. Blade Speed 5,800 RPM, Arbor Size 5/8 in, Arbor Shape Round, Diamond Knockout Yes, Number of Teeth 56, Primary Material Application Stainless Steel, Materials Aluminum, Aluminum Extrusions, Angle Iron, Channel Iron, Copper, I-Beams, Lead, Pipe, Stainless Steel Plate, Steel, Steel Plate, Steel Studs, Thin Aluminum, Thin Steel, Tubing, Unistrut, Zinc, Metal Cutting Type Thin Steel, Blade Thickness 0.055 in, Width 0.071 in