Betcha can’t guess what this is! Just kidding. Yes that’s a standard 1 3/8” PTO shaft to which you can hook any 3 point, PTO driven CUT implement. What use is it? Well, for driving a 6’ finish mower not much. But for driving SIZE APPROPRIATE equipment driven by a standard PTO which is operated in a stationary mode very useful. For example, water or irrigation or trash pumps, generators, hydraulic pumps, grinders, etc. etc. etc. Just add two wheels and a simple fitting to connect to the 2 wheel tractor hitch, snap on any standard PTO shaft and you’re ready to go. The BCS tractor will tow it anywhere it needs to be used and power it when you’re there.
The fitting below the tractor (on the ground) is the standard quick attach fitting usually on the tractor. I removed it to attach the standard PTO fitting adaptor for the photo. Removing & replacing took 5 minutes. Also, this photo shows the wheel spacers bolted to the brake housing. Up to three sets of these spacers can be attached.