Copper shut-off tools are designed to shut off and reshape 3/4" to 2" type K copper tubing. The tool swings open to go around the pipe. Fine threads on the screw provide smooth, easy tightening. Sliding bar handle is used to increase leverage for turning and to permit work in tight places. Handle can be positioned in two different spots, depending on where there is clearance. The bottom open area of the shut-off tool is used to reground the tubing to allow 80-90% return of flow.