Caterpillar’s H65Ds is the company’s largest hammer option for compact equipment users. The H65Ds is sized for use with all Cat skid steer and multi terrain loaders as well as the following mini hydraulic excavators: 303.35C, 303C CR, 304C CR and 305C CR. The hammer is compatible with the Caterpillar pin grabber quick coupler system. Has an impact frequency of 700 to 2,000 bpm at an operating pressure of 2,466 psi.