I picked this IR impact electric... up at a yard sale. I assumed it was 1/2 inch, then I figured it was 3/4, but now I know it is 5/8. I never heard of this before. The board is not letting upload a pic right mow, but It is heavy cast AL looks like any other exept I can put a 5/8 open end wrench on the out put square. Anybody?
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