Hones or honing machines use abrasive tools to create a precision finish on metal workpieces. This method of grinding helps produce the desired bore geometry, surface finish, and surface structuring. One common application that the process of honing is used on is finishing engine cylinders on car engines. By using the honing tool with expanding abrasive stones, a perfect finish is created inside the cylinder head. This allows the piston to move freely through the cylinder thus maximizing compression. Check out our selection of used hones from such manufacturers as Sunnen.