The adapter does not fit the US angle grinding spindle.
Adapter does not fit US angle grinder spindle. A standard angle grinder has a 5/8-11 threaded spindle and the included adapter has a 3/8-20 thread.
Pros
With this accessory you can convert your angle grinder to a belt grinder in a minute. You can install the belt sander attachment on the table to get a good polishing table.