The vertical tensioner set contains an adapter plate, two quick release clamps and a vertical tensioner. The tensioners increase safety and increase the efficiency of drilling operations. Comfort plus: The automatic height compensation handles material thicknesses of 0 – 40mm all by itself. This means that the vertical clamp on the clamping plate can be safely positioned and fixed without tools, in the blink of an eye. The set of circular adapter plate provides precision and flexibility in the positioning of the pressure spindle.