Small Hole EDM Drilling or sometime referred to as Fast Hole EDM or "Hole Popping" is an excellent method to drill holes in conductive materials and in many cases it is the only option. Regardless of metal type or hardness, precision holes can be EDM drilled up to 70% faster than conventional methods. With Unified Tool's CNC EDM Drilling capabilities, holes from .005" to .118" diameter can be drilled to depths of 200 times the electrode diameter.

As shown below...a .007" diameter hole is drilled through a 5/8 thick carbide bushing...concentricity is held from one end to the other within .001". Also shown is a small stainless steel machine part...430 .009" diameter holes are drilled burr-free with lighting speed.

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