3x agree, with a small enhancement. I found that the original thumb wheels were not large enough to to apply max clamp load and had parts slipping out. I replaced the threaded studs with longer ones, added large diameter nylon washers, and larger diameter thumb wheels. Now I can clamp a PB 1/2 etch 6" long with the 1mm flange under the clamp and bend the the full 6" of material. I use it to make my own design PRR catenary poles.
