The thickness of a rectangular brass plate of length L and width B has to be reduced by âtâ mm in one pass by a helical fluted plain or slab milling cutter of length L (>BW), diameter DC and number of teeth, Z at cutting velocity, VC m/min and feed, S0 mm/tooth. How will you determine the time that will be required to accomplish the aforesaid work? All other dimensions are in mm.