Harmonic Balancer Installer Tool Set, 5-Piece Long Reach Crank Pulley Underdrive Damper Puller Installation Tool Kit, 4 threaded rods and 1 Bearing Press Hex Nut. Comprehensive Harmonic Balancer Installer Tool Set: 4Pc long reach adapters ( M16x2.0, M12x1.75, M14x1.5, M12x1.5); 1Pc bearing press hex nut.