The new dust collection system can keep the dus and waste gas away from the operator. Product Name:Circular Saw Product Model:R7801 Product Model...............M1Y-RY-180 Blade Diameter..............180mm Mx Cutting Capacity.........55mm No-Load Speed...............4700r/min Rated Input Power...........1050W Rated Voltage...............110-240V Rated Frequency.............50/60Hz PCS/CTN.....................4 Measurement.................48.5*31.7*51cm G.W./N.W....................5.45*/4.5kg