Best 20 bucks ever spent on a cheap tool was this flywheel holder purchased on Ebay. Between this and my 1/2" breaker bar and a 1/2 to 3/8" adapter was able to take that Novi nut right off, no heat required and there is no visible damage to the Novi nut. I will be replacing this nut with the upgraded hex sided nut that Treats sells anyways.