Toroidal boat propeller. It's Solidworks model was exported in other CAD formats. This 3D model can used in producing on CNC machines and for 3D printing.Toroidal boat propeller dimensions: Main diameter - 11 3/8Inch (29cm) , Height - 5,9 Inch (15cm), hub diameter - 3,5" Inch (9cm), 19 spline tooth, 2 blades.