GM SBC BBC 305 327 350 396 427 454 Crankshaft Balancer Turning Tool Socket 1/2"

New ProForm crankshaft turning tool. This tool bolts to the harmonic balancer on SBC (Small Block Chevy 55-96) and BBC (Big Block Chevy) harmonic balancers. You can use a 1/2" drive ratchet or a 1" socket/wrench to turn the engine.