Hi could you please let me know what fittings do you use for the oil lines? I'd like to switch to something like this for my gantry on my machine but don't know what to search exactly, I'm using hiwin guides which have M6 holes for the grease nipples, would lines like what you have work for grease as well? and what do they call the piece that hooks all lines together so that you fill them all up from one point?

thanks!