Robust, well made. But the standard 5/8 inch clutch pin will not fit without drilling or grinding. I'm guessing they drill a 5/8" hole and then paint (powder coat?). Luckily I had that drill - most drills do, but the sets aren't that big. I suppose you could turn it in instead. It was a pain because I only found out after I had already installed it and access to the holes was difficult.One star off for stupidity.