Excellent tool for speeding up press bearing removal and installation. The manual that comes with the tool is pretty accurate, but check what you're working on to make sure you don't damage the tool. I had a Subaru I was working on that said the bearing snap ring was on the outside. However, the locking ring was inside and hidden by gaskets. I ended up igniting the press cup, which I had to guarantee. Expect thrust washers to be replaced after about 10-15 bearings, even with proper lubrication. Find a suitable 3/4" bore thrust bearing. Overall a great tool, you will need a 1 1/4" wrench for the drive nut and a 25mm or 1" socket for the drive screw.