A hex hose finisher for AN8 hose with a 17.75 mm internal diameter. AN8 carries the fuel feed, oil cooler and transmission cooler lines on most performance builds, and those runs are usually visible, so how the ends are terminated matters. The finisher clamps the hose down onto its spigot with pressure spread around the full circumference and encloses the cut braid in a hex body that reads as a machined AN hose end. It is a cost-effective alternative to full hose ends on low-pressure push-on applications. Size it from the measured outside diameter of your hose over the braid, and make sure the hose is fully home on the spigot before tightening.