During intermittent milling of low alloy and carbon steels, at lower velocities tool failure is due to rake face pitting which is caused by the ‘adhered’ chip being thrown off the tool, [9]. Multi layered coatings presumably have a deteriorated thermal conductivity, thus not providing sufficient relieve to the cutting edge of cemented carbides in intermittent cut machining [10]. The influential cutting parameters affecting the tool life and surface roughness were cutting speed and feed rate during general milling. Cutting speed and feed rate are the influential factor of tool life during intermittent cut using TiN coated tools [5]. Surface roughness is determined by the variation of the relative position of the cutter and its growth is not closely related to the increase in the wear of the cutting edge [11]. The behaviour of surface roughness as cutting time elapses is very different in coated tool while comparing to the uncoated tool. Also surface roughness can be improved by controlling the feed rate during milling [12].