ARP Square Drive Harmonic Balancer, Damper Bolt Kit - SB Chevy 200400109 27 mm 12 Point Head

27 mm 12 Point Head

A flexible fuel and oil resistant sole provides the ultimate grip

Manufacturer certified to comply with the SFI Foundation's 16

Quicker Starts

ARP Square Drive Harmonic Balancer, Damper Bolt Kit - SB Chevy 200400109 27 mm 12 Point HeadARP offers a special version of its rugged 200, 000 psi rated balancer bolt that can accept a standard 1 2? drive ratchet or breaker bar to facilitate rotating the crank assembly. 1 2? square drive forged into bolt head, enabling the rotation of an engine with any 1 2? drive tool Made from heat treated 8740 chrome moly steel with heavy duty black oxide finish. Since 1968, ARP is the fastener of champions and the world leader in fastener technology.