Vintage Knife switch 3d model. A knife switch is a type of switch used to control the flow of electricity in a circuit. Polycount: nosub - polys 14988 verts 14997 1 sub - polys 120000 verts 60011 System units, metric, 1 unit =1 cm. --- This model is also available in the collection Vintage switches collection vol.1 - Product ID: 929249 --- Rendered with Vray on one subdivision, texture of pressure gauge scale included in to archives. Vray and standard versions of max file included, render scene and HDRI map - not included.