TOOGOO(R) 110mm Diameter 40T Rotary T.C.T Metal Saw Blade for Wood Cutting Product Name: Cutting Blade; Use: for Wood Cutting Outer Diameter: 110mm / 4.3"; Teeth Quantity: 40T; Kerf Thick: 2.2mm Middle Bore Dia.: 20mm; Speed (max.): 5000 RPM Material: T.C.T Metal; Net Weight: 89.4g Package: 1 x Cutting Saw Blade; 1 x Metal Ring