Simple but essential tool for the manual presetting of EO-fittings. The use of a VOMO assures that the bite ring securely cuts into the tube without damage on the inner fitting cone. Pre-assembly using VOMO or EOMAT must be done for all connections of: – EO-2 with large tube dimensions (Tube O.D. 30 mm and above) – EO-Progressive Stop Ring/Progressive Ring with stainless steel tube or standpipe fittings (E.g.: “BE”-type hose fitting). For proper use, see EO assembly instructions. VOMO tools wear out and then may cause assembly failures. VOMO’s must be checked regularly with “KONU” cone gauges (max. after 50 assemblies) and replaced when damaged or worn out.