Piston Ring Gap

Piston Ring End Gap ToolThis tool makes measuring ring end gap faster, more accurate and eliminate the guess workInstall tool into a cylinder bore and then view the ring end gap in the “Key Slot”Flanged design allows piston ring to fit squarely in cylinder bore every timeEach side of the tool is made for checking a standard size piston ringsJust install any ring, top, 2nd, or oil control rails on the toolUse a feeler gauge to get your end gap measurementMade in the U.S.A.For H-D 95″, 103″, and 110″ motors w/ standard size pistons (3.875″ or 4″ bore)