Other than with roughing, at lathing only little bronze is removed from the cymbal. The lathing tool therefore is finer and is guided by a human hand, not a machine. The cutting tool is drawn in a continuous motion from the cup to the edge. The grooves on the cymbal surface not only looks good, but influences the sound as well. Lathing 'opens up the cymbal' and 'adds life' how they say, by increasing the high frequency sustain.
Applying differently shaped tools, varying amounts of pressure, and the speed of the tool moving from cup to edge, all make their mark in the resulting spiral pattern. The width and deepness, as well as the density of the grooves shape the sound. With this UFIP Class Splash, lathing took less time than mounting and unmounting it on the machine. However, this is not always the case. Lathing a large ride takes much longer.
The cymbal is checked for the pre-determined weight of its model. If too heavy, it's being lathed again, if too light, it gets trashed. Since UFIP cymbals are not covered with a protective coating, this is the last step, except for those UFIP cymbals that are hand-polished.