Window cutter for gas service tie overs and tie-over method

摘要

A pipe slitter comprises a base for fixing the slitter to a pipe to be slit thereby. The base includes a pair of end plates for mounting transversely of the pipe and a carriage guide for coupling the end plates to each other. The carriage guide extends longitudinally of the pipe. The carriage guide movably supports a first carriage. A second carriage movably supports a slitter blade. The second carriage is movably supported on the first carriage for movement of the slitter blade longitudinally and transversely of the pipe.