SMART Miller milling technology offers a various type and design of mills for wellbore. The design and type of mills is selected depending on the purpose of work. Mills cutting edge reinforced with crushed carbide and carbide inserts for milling the object which left in the open hole or cased hole. All mills are designed with large circulating ports and watercourse improve fluid circulation and tool cooling. Moreover, better milling penetration and better cuttings removal from wellbore.