Heavy-duty version of the snap-on. Requires no pre-threading. All seals designated as "DG" have an aluminum oxide grit glued to the inner face. Grit seals are used in crimp joint systems in conjunction with lubricated strapping to provide a source of friction.
Double Crimp. Seal name: 107 DG OF. Tool name: B-1431, B-1450, NSP-1435.