What kind of tool will remove a security fitting from a Comcast splitter or amplifier? It looks sort of like an F fitting but the tool has to go down inside it with two small tabs to grab, for a counter clockwise removal. May also be the same tool to take the fitting and cover off of the box at the demarc location – I have seen them there a time or two.

Saw this at Amazon - is it right? But want something that will last. [Link: amazon.com]