*All metal: the inlet teflon only reaches the top of the barrel, the rest of the way is through the metal interior of the barrel, it prevents the inlet teflon from touching the nozzle, making it suitable for high temperatures at which teflon can degrade. However, this type of barrel requires a few degrees higher temperature and is usually more prone to jamming
*Bore 4.1: The inlet Teflon reaches the other end touching the nozzle. In this type of barrel, it is essential that the teflon is of quality if it is going to be printed at more than 230 degrees, as well as that the cut of the teflon is completely perpendicular to avoid gaps between it and the nozzle. Make sure when inserting the Teflon that it reaches the nozzle to avoid gaps
between the two.
Bottom Diameter: M7 threaded
Upper Diameter: M8 plain
Non-original e3D item