Ceta Form Wrenches. Precise, Tough and Elegant. Ceta Forn wrenches are broached to very tight tolerances. In the later stages of production, necessary efforts are given to ensure that these original tolerances are kept. Therefore either open end or ring, all wrenches tightly fit the fasteners. From open-end to ring-end, E-TORX to flare nut, metric to imperial a large range of variants are available throughout our wrenches range. You will find what you are looking for.