Abstract: A hot tape saddle fitting (FIG. 1), has means (5) for connecting a pipe to a chamber (4) having an opening of which a rim (14) in use seals with the exterior of a pressurized main pipe encircled by a collar (1). The fitting is characterized in that a cutter (6) within chamber (4) is operable to cut the saddled main pipe in a chordal direction whereby to connect the pipe to the mains pipe. For preference chamber (4) extends as an elongate tubular body (3) in the chordal direction and cutter (6), is hollow, tubular, sharpened at one end (61), closed at the other end (63), and sealing slideable within body (3).