If like me and after seeing Fordtechmakuloco you are temporarily working on your 3V, you should buy the $105 version of this tool. DO NOT DO THAT! A more expensive one got bent at the factory so I ordered this one as a backup replacement Amazon sent me. This arrived 2 days before the exchange and I had already zipped the truck up. Just make sure it's seated snugly on the valve stems before turning it. All tools will bend if you touch any part of the block during compression.