1255 Piston ring end gapping tool

Achieving the perfect piston ring end gap is critical for engine longevity and performance, and this Jims gapping tool makes the process incredibly precise. This hand-operated grinder features carbide-coated steel blades that allow you to carefully shave material off the ring ends until you hit your exact specifications. It is a universal tool that belongs on every engine builder's workbench, regardless of the specific Harley model you are working on. It is simple to use but far more effective than trying to file rings by hand. If you eventually wear down the cutting surface, replacement blades are available under part number 961428 to keep the tool in top shape for years to come.