The DCNC toolholder is similar to the kress clamps but has some improvements. After working with the kress clamps in our cnc machines we were annoyed that the toolchanges took a lot of time. This problem was first solved by adding a retaining nut for each clamp. But this meant a price of about 30EUR per tool. Further there was no way to fixate the tool length. So we could not work with the mach 3 tooldatabase. These problems were fixed by developing our own toolholder. It fits in the standard kress 8mm clamp. Further the tool length can be fixed with a fixation screw allowing the too length to be fixated. The toolchanges are now very quick and due to the design the tool length is the same every time. We now use a tooldatabase in mach 3.