Comp Cams Two-In-One Professional Crankshaft Nut Assemblies

Every engine builder will appreciate these heavy-duty, heat-treated, convenient Comp Cams two-in-one professional crankshaft nut assemblies. These two-piece assemblies will allow you to turn an engine in either direction using a large-diameter socket. They also provide a secure method of attachment for harmonic dampers, degree wheels, etc.