In order to drill a hole of a diameter through which the wire will pass in CNC wire erosions, these are the machines that remove chips by rotating and performing erosion with sparks in the metal material. As is known, the wire diameters used in CNC wire erosion machines vary between 0.1 mm and 0.3 mm. To drill such small diameter holes on the material, it is necessary to use a very fine-tipped drill set. This is almost impossible unless it is a very, very special machine. To prepare the workpiece to be cut in wire erosion machines, CNC fast hole drilling erosion machines are manufactured for this purpose.

Metal in small various diameters is used as the electrode used in EDM sinker erosions. The difference from sinker erosion is that the erosion movement via spark through the arc does not occur by creating an up-down gap, but by the radial rotation movement of the head as it progresses in the metal workpiece. While the electrode progresses through the metal workpiece, dielectric fluid is again used.

Many EDM manufacturers produce hole drilling machines in their own brands as side auxiliary machines.

Under the CNC hole drilling erosion machines category, there are listings and prices for pre-owned and new cnc edm sellers and second hand for sale cnc hole drilling machine from owner.