Finishing drill bits D40

D40 finishing drills are a core group of drill bits in our company. By using a small amount of PCD, which is a fragment of the entire cutting edge, the major part of which is the body material of VHM, we obtain an affordable tool. By placing a PCD cutting edge in the area where the drill wears mostly, we can greatly extend the life of the tool. They are commonly used in drilling of non-ferrous metals