OTC's Chain Tension is designed to work on drive chains found on motorcycles and ATVs. It fits the following size chains: 428, 520, 525, 528, and 530. Tool jaws fit in chain link ends. Tightening the forcing screw pulls the jaws together to hold the chain for easy removal or installation of the chain connector or master link. High-grade materials ensure quality performance over the lifetime of the tool. Value is at the core of the OTC tool and equipment portfolio. For a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it's a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians' productivity and shop profits.