Please refer to photos for additional details. The EWK 2”-7” 3 Stones Engine Cylinder Hone Tool 220 Grit is a high-quality piston hone tool designed by EWK. This tool is specifically designed to smooth and finish engine cylinders, ensuring optimal performance and efficiency. With its three stones and 220 grit abrasive, this hone tool effectively removes cylinder irregularities and ensures a consistent finish across the entire surface. Perfect for automotive enthusiasts and professionals alike, this tool is a must-have for maintaining and repairing engine cylinders.