increase the precision manufacturing blades of the pump, often used in aviation you can use the suggested method. When machining in a single setup significantly increases the volume of material passing into the chip, but up to 40% decreases the cumulative error between blades. When venny the process is quite handsome. Processing of aluminium produced by the end mill Ø6 mm, feed per tooth 0.8 mm, serve (S)= 4.8 mm, cutting speed 32 mm/s.