Speed: (3,14xDxN)/1000
D= blade diameter
N= revolutions per minute

Total cutting rate in mm/min= Cutting rate per tooth x number of revolutions x number of teeth.

If You use blade Cemet + PVD
cutting steel with tensile strenght up to 900N/mm
cutting speed 100/280 M/min feed 0,06/0,1 mm/tooth
cutting steel with tensile strenght over 900 N/mm
cutting speed 60/140 M/min feed 0,05/0,09 mm/tooth