Rougher Profiles Semi-Finishing Coarse Profile Finishing End Mill Fine-Profile Rougher End Mill Rougher Straight cutting edge Cord profile Flat profile Roughing profile Ra = 0,5–0,8 Ra = 12–14 Ra = 2,5–3,5 Ra = 2,5–3,5 Rz = 4–6 Rz = 90–110 Rz = 20–25 Rz = 20–25 Power Consumption Coarse profile For slotting, pocketing, and heavy profile cuts in ferrous materials. Fine profile For profile cuts and shallow slots (less than .50) in ferrous materials. Extra-Fine profile For profiling cuts in medium to hard steels. Chamfered profile For machining non-ferrous materials. Flat shallow profile For machining alloyed steels, stainless steels, high-temp alloys, titanium, and hard materials. Chipbreaker profile For roughing and semi-finishing. widia.com O53