STANDARD EXTERNAL CUTTERS
THE AUTOMATIC SPRING-FED KNIVES FEATURE OF THIS TOOL PREVENTS EXCESSIVE STRAIN FROM BEING APPLIED FROM THE RIG FLOOR THAT COULD CAUSE THE KNIVES TO BURN OR BREAK BEFORE THE CUT IS COMPLETED.
The tool consists of a top sub, body, guide, knives, spring dog assembly, thrust washer, thrust bearing, preload sleeve, feed ring, main spring, and shear pins.