Ken-is this a test? I'm impressed with the ingenuity here-especially if it works! I wouldn't think it would generate enough "oomph" to turn anything but the loosest soil. Looks like a Home Depot Ryobi string trimmer head on your Troy Bilt tiller chassis. This one is a 2010 era model. These head units were often cannibalized for other uses like large off-road RC buggies and planes (according to the internet). I especially like the "drive by stick" throttle control.