This looks way more usable! I didn’t tap the keepers with a 3/4, banging anything in the heads makes me nervous, but I also have no clue. Youtube god smiled upon me and just allowed a video of my specific tool. I had the upper handle turned around, so I should of been pulling the upper down to the lower handle. That’s probably why it wasn’t locking compressed. I will check shortly if rotating the upper handle 180 works.