I am buying 4 different Klenk aviation scissors In 4 separate transactions at Revain. All 4 shears would not be able to properly cut 18ga mild steel sheet. I compared each to the old Weiss scissors I have and found that the force required to squeeze the new scissors was twice that of the old scissors and the cut was uneven and crooked. I'm not sure what happened to Klenk's quality control as all those clippings are junk. I had read previous reviews warning of this but thought it might be a few isolated incidents but no these reviews were correct. Save time and find another brand.