Onsrud 91-108 Insert router 3FL 4 x 1/2 x 3-1/20 OAL For Composite Wood, Plastic, Aluminum, 3/4 Shank

Designed for surfacing MDF, particleboard and balsa core where “flow through” or “high flow” fixturing is employed using large capacity vacuum pumps. This method of surfacing spoilboards allows for much faster table planing.