The Piston Ring Groove Plug Gauge is used to verify the internal diameter of piston ring grooves during inspection and servicing tasks. The tool helps confirm that groove dimensions remain within acceptable limits for correct piston ring clearance. Accurate groove checking supports proper ring seating and controlled movement inside the groove. Correct clearance allows piston rings to seal effectively during engine operation. The gauge helps technicians identify wear or enlargement in grooves caused by prolonged use.Attributes:• Verifies piston ring groove diameter accurately.• Helps identify worn piston ring grooves early.• Helps maintain balanced piston operation.Applications: The Piston Ring Groove Plug Gauge is positioned at the piston ring groove area, enabling technicians to accurately measure groove width by moving internal groove measurements outward for external reading.