Power Threading-water jet maintenance
1.Secure the coned tubing in a tube vise. No more than the recommended length of tubing
should extend beyond the face of the vice. See Table 2-10, Recommended Extension Length.
2.Mount the threading tool in a 3/8-inch or 1/2-inch, variable speed power drill. Apply cutting oil
to the end of the tube and slide the threading tool on the tubing.
3.Make sure the drill is set to turn counter-clockwise. Apply steady pressure against the end of the
tubing while the threads are being cut.
Apply cutting oil frequently and liberally throughout the cutting operation. A medium weight cutting
oil with high sulfur content is recommended.
4.Continue threading until the proper thread length is reached. See Table 2-9, ColumnL. Reverse
the direction of the drill and remove the threading tool.