Authentic Yoshida Tools Pneumatic Angle Grinder YA-6C Series Model: YA-6C-1 (Roll Type) & YA-6C-1F ( Safety Lever Type) Wheel Size: 180 x 6 x 22mm Thorttle Type: Roll & Safety Lever Rotational Frequency (min-1): 7,600 Max Air Consumption: 1.1 Air Hose Size: 12.7 Air Inlet: RC3/9 Lightweight, Powerful & Durable Low noise operation by open/close system silencer Free from frozen vent stuck in cold environment change exhaust direction Ideal for heavy grinding work such as Shipbuiliding & Construction Made in Japan