Pieces of steel in cylinder??

They’re junk! I got a loaner from the local chain auto parts store, didn’t work worth a crap. Popped off every time. Then I bought a lever-type tool, didn’t work either. Finally ended up with this one, it works okay with the c-clamp holding it on, but just like you guys are saying, it scares the hell outta me. Maybe I’ll go with Yellow Rose’s suggestion and make my own. I’m just not keen on sacrificing one of my good welding clamps. They ain’t cheap...