To provide a tool for fitting a metal connector, which allows the smooth and easy fixing operation of an encapsulating pipe, causes no friction- caused wear damage to a tool, and makes rack feeding smooth and highly stable.

By the tool, a metal connector A is fitted on one end of a rack 6 penetrating a tool body 5, of which the upper surface is fitted with a pipe B that is fixed to a pipe fixing means 2. Using a handle lever 4, a rack drive means 1 is driven to insert the metal connector A into the pipe B. The pipe fixing means 2 comprises a plurality of fitting grooves 24, 24a formed on an operating arm 31A of a pipe setting part 3, and a fixing fitting lever 21 pivoted on the side face 52 of the tool body 5 in a swingable manner and having a fitting roller 23 fitted in or removed from the fitting grooves 24, 24a.