Engine cylinder and piston tools include honing tools and stones, piston removers and installers, ring compressors, and ring filers. Honing tools refinish cylinders so that piston rings fit more tightly. Honing stones rough up a factory finish to help the honing tool work more efficiently. Piston removers and installers place the piston into a vehicle cylinder. Ring compressors are pliers sets that help install pistons. Ring filers grind rings to the right size for tight-fit installations.