The small clamps bend as soon as something clamps. One can therefore hardly build up pressure. At least not so much that it would do a clamped fingers badly hurt. Good, I thought, I need eh rare. The large clamps do not look bad. One can thus not as much pressure as the Wolfcraft Force that I have the same size build, but they cost significantly less.
But now, so after two to three months is broken in normal use, the large clamps. My conclusion: The purchase I could have saved me.