Ultra-precision metal tubes and EDM electrodes, engineered to your needs.

Founded in 1964, KAKOH is a Japanese manufacturer of high-quality precision metal tubes and electrodes for small-hole electrical discharge machining (EDM). We supply standard, spiral and custom-made electrodes, as well as round and specially shaped tubes in a broad range of metals and sizes—even in single-piece quantities. Materials include copper alloys, brass, tungsten-based metals, titanium, stainless steel and cemented carbide. We also offer secondary processing, including drawing, polishing, welding, precision bending, cutting, machining and coating. KAKOH products serve the semiconductor, aerospace, automotive, energy and medical industries. Drawing on decades of expertise, we respond quickly and flexibly with reliable quality, high purity and tailored manufacturing solutions.