Review on OTC Tools 6982DGS Drilling System by Pete Gibson

I had a broken exhaust manifold bolt in the head at the very back on the passenger side of my Chevy 350 engine. Not to mess anything up, this was the only tool I could buy to get the job done properly. As you can see from my photos it worked and with the angled bit I was able to drill a perfectly centered hole in the bolt part without damaging the head. I may never use this tool again, but the job was done right and I did it myself without the help of a machine shop.