drill bit for metal Carbide drill bits Rational use of drills

Rational use of drills in the past, it was believed that Drilling Tools  must be carried out at a lower feed rate and cutting speed, this view using ordinary drill under processing conditions used to be correct. Now, with the emergence of carbide core drill bit , drilling concept has changed. In fact, by the correct selection of a suitable carbide drills, drilling can greatly improve productivity, reduce processing costs per hole.