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The ideal system for precision rod reconditioning and pin fitting, the LBB-1660 turns old connecting rods into "new"! The proven high torque LBB-1660 can recondition connecting rods from 1.45”- 4.7” (36.9 mm- 119.4 mm). In addition to connecting rods the LBB-1660 is ideal for air compressor cylinders and small bore engine cylinders such as motorcycles, outboards, and lawn equipment.