The T-shaped machine body gives the machine a good stability, which is a prerequisite for high working accuracy and grinding quality. The UWI A is versatile, yet simple and easy to use. The machine is normally operated from the front. On request and at an additional price by attaching further adjusting devices also possible from the rear. This created the basis for a fatigue-free, easy-to-grasping sewing activity during sitting. Particular emphasis was placed on high precision and longevity of the components.