1) Blade Diameter 185mm 2) Input Power:1050W 3) No-load Speed:4900r/min 4) Spare parts100% exchangable ... ,Electric Drill,Impact Drill,Rotary Hammer,Demolition Hammer,Orbital Sander,Circular Saw,Chain Saw,Polisher Sander etc .Also we produce the Motor(Armature ... -8344 1177FAX:0086-513-8344 8099P.C:226241Cell Phone:15250619766 Circular Saw -power tools