If you bought one of the Harris Jack Rapid tools for terminating all eight wires in a Leviton or other jack insert it may well have become too hard to squeeze.
They don't want to fix them, but send it in and for $51 they will replace it. There is an easy solution. Take it apart and take a small grinder like a Dremel tool to any of the surfaces that look scratched. The middle fork of the cutting part was a little high and once a few areas were ground down and little bit of while lithium grease applied, it works better than new.
If you've never used one, they save a lot of time and palm aching. Put the wires in the slots, slide the insert into the Jack Rapid, squeeze and it is totally terminated.
If you haven't seen one, they are at:
https://harristools.flukenetworks.com/products/tools/structured.asp#Blades They won't do anything for 66 blocks, but are great for jacks, especially after you make the slide work smoother, grind down, don't buy a replacement.
