Review on Research FLEX HONE Cylinder Abrasive Diameter by Marlo Schlachter

Bought to sharpen Buick 3.8 cylinders after trying out their old 3 arm stone grinders. I have no idea why I ever thought this contraption would ever work. That's a beast. It takes seconds to use properly and I didn't give any extra thought to getting the crank back and plugging in the pistons. If during your mid-life crisis you're ever planning on having to overhaul your engine, save yourself some time, grab this one and the next, and use them to perfect your SBC or whatever.