China Brazed carbide gun drill Manufacturers

Brazed single flute gun drill is made up of the drill tip,drill rod and drill handle through welding into awhole,can be processed according to the differentchoice of the carbide materials by means of reasonable tool design.The bit is usually made of integral solid carbide,with the tip portion welded to a heat treated drill rod and then linked to a finely polished steel drill handle.For special materials of the workpiece,drill bits can alsobe treated with different kinds of coatings.