This 2" end mill works great and is great value. I found the counterbore for the mounting screw to be too small for the screw that came with the mandrel. The standard socket head cap screw will do from shop.
Very happy with the tool and its arbor although the washer needed to attach the tool to the arbor tool was not included. The clamp was on a spike but there was no washer or anything special. FYI, that's a 3/4" flat washer. Very happy with the cutting action of the tool once I installed it.
These tools never disappoint. Why pay more for the same quality. My insole broke at least twice due to inattentiveness and after a call to the SA with accusations, replacement parts were sent immediately. They take care of their customers like no other American company. I strongly recommend blaming the tools for this.