Round knife,Flanges,magnetic powder clutch and Air shaft,pad shaft and Flanges 1.lager round knife ( speed steel) Knives Size: 350MM* ... 25.4MM*3.0MM and 370MM*25.4MM*4.0MM (material: high speed steel), used ... 220 180 115 5 120 M10 45 14 30 3. Air shaft,pad shaft Winding drum core standard Unearated axis external ...