The Piston Pump Measuring Tool Test Ring is applied during pump measurement procedures to hold internal parts in a defined alignment state. The ring creates a uniform positioning condition between rotating elements, so dimensional checks can be performed without distortion. It is used when evaluating lift-off conditions to determine appropriate shim thickness. The tool limits unwanted rotation or displacement during inspection.Attributes:• Reduces correction cycles caused by misalignment.• Ensures uniform positioning during static checks.• Prevents displacement during inspection procedures.Applications: The Piston Pump Measuring Tool Test Ring is used during pump measurement processes where controlled alignment is required to evaluate barrel lift-off and select appropriate shims.