With SMP’s Piper Backup Tool, you don’t need an operator to hold a back-up wrench, meaning a one-man crew can work like two.
The Piper Backup Tool works extremely well in limited spaces, and handles nut sizes from 7/8” to 5-3/8”.
To operate, simply place the Piper on the back side of the flange nut that's being tightened. A ball detent holds it onto the nut and flange. Once the nut is fully tightened, tap the Piper off of the nut and move to the next one.
SMP Piper products are cast from 8620 steel that contains nickel, chrome and molybdenum as alloying elements. The tools have a Rockwell "C" level of 58-62.
Piper Backup Tools from SMP come in kits ranging from a three-piece set (7/8”, 1-1/16”, 1-1/4”), to the largest eight-piece set (7/8” to 2-3/16”) with a Pelican Case.