Micro EDM is a subtractive machining process that removes material by creating a series of electrical discharges (sparks) between an electrode (typically a thin wire) and the workpiece. Each spark melts and vaporizes a microscopic amount of material, allowing for extreme precision—even in hard, conductive materials like titanium, Inconel, and tungsten.

Unlike traditional cutting or milling, EDM introduces no mechanical force, making it ideal for fragile geometries, thin walls, or small cross-sections. It’s often used when conventional machining reaches its limits—think micro holes down to 0.0015″, ultra-thin slots, or sharply defined corners on parts smaller than a paperclip.

In modern manufacturing, especially in regulated industries, micro EDM is critical to producing high-precision features that must be burr-free, accurate, and repeatable. From micro catheter tooling to aerospace sensors and surgical instruments, EDM enables miniaturization and reliability in ways few other processes can.