The Ring Groove Gauge provides a direct way to check piston ring groove wear so the user can determine whether the piston is suitable for continued use. It supports consistent evaluation by showing a clear scribe‑line indication during inspection, helping reveal when the groove maintains the intended width. The gauge improves workflow by offering a simple visual check that removes guesswork and reduces inspection time. It also helps users avoid reusing pistons with worn grooves by making the result easy to interpret.Attributes:• Checks wear in the piston ring groove for reusability decisions.• Supports quick evaluation through the scribe line method.• Reduces time spent inspecting groove wear manually.Applications: The Ring Groove Gauge functions in the piston inspection area to evaluate top ring groove wear through a clear scribe‑line check, supporting fast reusability decisions and consistent assessment during service routines.