Having a great surface finish with a face mill is particularly important and is done so with the Finish Jet Mill. With a combination of both finishing and roughing cartridges, stable machining can be achieved. When the depth of cut is below 0.1mm, 4 finishing inserts can be used for the best finish. Also, the user can adjust the inserts axially to set the perfect height to adjust face run out. Different cartridges can be used in the same body to hold “backdraft” inserts for finishing side walls.