Description: 1.Made of high quality cemented carbide, this circular saw blade is quite durable. 2.Inner diameter is 20mm and it will fit for many electric saw machines. 3.40 evenly arranged teeth are very sharp which ensure fast and fluent cutting. 4.It can cut nonferrous metals such as aluminum, brass, copper, bronze and plastic, PMMA, PVC, fiberglass, wood, etc. 5.Widely used on marble cutting machines, electric hand saws, sliding table saws. Specifications: Material: Cemented carbide Teeth: 40T Outer Diameter: 105mm/4in Inner Diameter: 20mm/0.78in Max. Speed: 11000rpm Package Includes: 1 x Saw Blade Note: The color of letters imprinted on item is random.