EDM erosion achieves ultra-tight tolerance for intricate parts that ordinary machining cannot reach. Sparking processing keeps stable accuracy even for tiny slots and deep inner cavities.

It easily machines quenched steel, carbide and all conductive high-hardness alloy components. Material hardness brings no processing barriers unlike cutting with solid tools.

Non-conductive plastic and ceramic workpieces cannot be finished by EDM spark erosion. Alternative machining methods are required for insulating raw material parts.

Small material removal per discharge leads to longer cycle time for large-size parts. EDM is mostly used for small-batch precision finishing instead of mass rough machining.