Unless you make out of aircraft aluminum and weld the sucker, just like beach scoops are made. My first trenching shovel was U.S Army issue, but was riveted aluminum. Surprisingly, it only lasted about a year, before all the torque and pulling on it caused it to fatigue and break.
Subsequently, I decided to go with a U.S. Army steel issue, and now I get at least 5-7 years use out of each one. If fact the only reason my last one broke is that I tried to chip through solid frozen ground in winter, I was basically swinging my shovel at each hole as if it were an ax, and it eventually broke that same day.
If you want the aircraft aluminum one, why not ask Bill Babb, a maker of quality heavy-duty aluminum water scoops and detector accessories. He has all the equipment to weld and fabricate aluminum to whatever thickness you want and he is an expert at making quality stuff. If you want to be put into contact with Bill to ask him if he can make this item for you, email me at markrossman@hotmail.com
Hope this helped,
Mark