Review on Ultra-Flexible Coupling Connector: 0.275 Inch Diameter – Unmatched Versatility and Precision by Robert Berio

Overall just awesome! A 7mm screw that fits is quite hard to find and I would like the seller to sell it with the hardware. Or offered at purchase. I now have 9 cup motors and had 2 of these fittings out of 20 ordered. It's great when I've turned over 200 cups with it. I will continue to use and buy them!