The TURBOPlane™ is a universal wood shaping blade that can be used to create different shapes, profiles and finishes. Simply attach it to the Power Carving Unit™ or a standard 4" (100mm) or 4 1/2" (115mm) grinder with a 5/8" spindle and it can be used flat to create large level surfaces, or at angles to provide shallow cuts for fine shaping, planing and sculpting.