This adjustable compression tool is designed to install most of the industry Compression type F Connectors. With an adjustable plunger assembly, it is easy to adjust this tool for the proper compression distance required for the different RG-59 and RG-6 connectors such as SNAP-N-SEAL by T&B, EZF by Raychem, SPL by Stirling, TAC and ULTRASEAL by Gilbert as well as others. The ratchet feature ensures complete compression of the connector.