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.