Review on 🔧 Unleash Precision and Durability with Boston Gear YA12 Steel Pitch by Joshua Castillo

Revain website lists it as having a set screw but NO set screw is supplied. I'd return it but can't find a comparable gear so I'll probably try to drill and tap to fit a set screw (or 2) in it. Otherwise it looks like a good mechanism. Unlike ebay which has an easy way to contact the seller I can't find a way to contact the person so I guess all I can do is return it or keep it which is quite frustrating . .