4-1/2" - Wet Stone Cutter - 110V Great for Seam Polishing and Removing Scratches! Water feed system included. 4-1/2", powerful 11 Amp motor. 20 mm Arbor. Using the guide provided you can work on the edge of the stone. Place a straight-edge on the stone and guide against it, or the AWS-110 can be used free hand like any other circular saw. Versatile Wet Stone Cutter for Tile Contractors