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Serious engine builders can appreciate the heavy-duty, black oxide steel crankshaft turning nut and bolt assembly. This tool/part combo installs into the engine crankshaft to keep the harmonic balancer secured. It also allows you to turn the engine in either direction using a large-diameter socket without the hassle of removing the harmonic balancer, then getting out another tool, and then turning the engine.
Two-in-One Function for Turning Engine Over & Securing Harmonic Balancer
Applications for Chevy Small-Block & Big-Block Engines
Heavy-Duty Steel Construction w/ Black Oxide Coating