3" 77mm in diameter Arbor Size: 11mm Carbide cutting grit for a variety of high performance cutting application use on materials such as wood, hard wood, plywood, composites, laminate flooring, drywall, PVC and plastic Do not apply excessive pressure – let the tool do the work US540-01 Brand: MTP RPM: 20,000 Fit for Dremel Saw Max Series Series For use on Dremel Saw Max SN20 and Rotozip zipsaw RFS1000,