ARP’s Performance R&D division has just released six new dual size Ring Squaring tools designed to make fitting piston rings as accurate as possible. These tools are CNC machined from 6061-T6 billet aluminum tube material and black anodized for a brilliant finish. The bore sizes are prominently engraved for easy identification and range in size from 3.150” to 4.800” SAE and 80mm to 122mm Metric.
