Review on Mitsubishi Pulley Wrench Tensioner by EWK: Top-Notch Automotive Tool for Efficient and Easy Repairs by Eric Pruett

This is nothing more than a cheap piece of metal. Broke on first use! Found the best solution on the internet. Use needle nose pliers and vise pliers. When I started tightening the pulley to spec the junk just broke and my knuckles went right into the harmonic balance gears resulting in a nice cut. You don't need this tool to remove the tensioner, but you do need a much better tool to install it to spec.