I got the Harbor Freight # 45820 tool at the local store yesterday, and
it works just fine on the Arc4+ bezel. Just use the smallest of the 4 sets
of points included with the tool, and orient them correctly. Use only the
two at the end of the tool, keep the third one out of the way.
The suggestion of snap ring pliers, or needle-nose pliers also work, and
clamping them in a small vise at the correct spacing is the way to go.