This is one of my most important garden tools, a broadfork that I call The Beast.
It's about 25 lbs, heavy steel with 16" long tines.
Since I bought The Beast about five or more years ago, I've run the tiller through the raised beds a whole lot less. It reaches way down and when rocked back it brings up any roots that have crept in from the grapes and crapes. The soil gets loosened without major disruption. I can't remember where I mail-ordered it from. Some place like Peaceful valley or some garden tool company. Best garden tool I own!