A hydraulic compression tool for securing a compression type cable connector to a prepared end of a coaxial cable. The tool can include a hydraulic assembly having an axially extendable ram, and a connector frame detachably attached to the hydraulic assembly. The connector frame can include a cable cradle configured to accommodate cables of various sizes and a sleeve for engaging a cable connector. The connector frame can further include a sliding guide structure attached to the cable cradle. The sliding guide structure can include a sliding bar and one or more sliding guides. The sleeve can be attached to the sliding bar. The sleeve can be configured to accommodate connectors of various sizes. Activating the hydraulic assembly can cause the ram to extend, which, in turn, can cause the sliding bar to move along the longitudinal axis of the cable connector compressing the compression member and connector body into operative engagement with the cable.