Ring Sqr Tool 3.810-3.990
Ring Squaring Tool: 3.810"-3.980"
Our Piston Ring Squaring Tools will add efficiency to any engine build-up. These hard anodized, aluminum tools push the ring a full .600" down the cylinder bore for accurate end gap measurement. The open design lets you reach through the tool and pull up on the ring for added accuracy. Several sizes and ranges are available, and all work on blocks with head studs installed.