The EUV tube provided by Laser nanoFab GmbH is a compact and user-friendly extreme ultraviolet (EUV) source for metrology. The source is based on advanced microfocus X-ray tube technology that has been extended to the EUV spectral range. The EUV emission is generated by electrons colliding with solid state targets. This concept guarantees debris-free operation, well-defined performance characteristics and excellent long-term temporal and spatial stability.