Does exactly what it shows on the video. A clever invention,but not a new one.
The Wolf Terrex spade was demonstrated to me on my visit to Wolf Garden Tools at Ross 0n -Wye circa 1972, and it had been around in Germany for quite some time prior. Heavy tool, simple to operate but does not achieve the desirable rotation of the spit to bury trash that I personally prefer. Any available pre-owned examples do not generally evidence frequent useage, which may be significant!