740 variants in 15 series for cardiac and vascular surgery, 400 of them with a carbide insert for a secure grip even on the finest suture. Jaw size, ratchet and handle shape can be chosen — with, without or with a soft ratchet; the balance is set by hand. Models after Jacobson, Castroviejo, coronary and the golf ball handle, whose ergonomic recesses reduce the contact pressure during long procedures.