The OPT OPT-H05-150 is a robust and reliable two-speed hydraulic hand pump designed for powering single-acting hydraulic tools. Its two-speed mechanism allows for rapid advancement of the ram at low pressure, significantly reducing cycle times, and then automatically switches to the high-pressure stage for completing the task. Featuring a durable steel construction and an internal pressure relief valve for overload protection, this pump is built for safety and longevity. With a large 1500cc oil reservoir, it is suitable for a wide range of applications, including powering hydraulic crimpers, cutters, and benders in field service or workshop environments where external power is unavailable.