This 8-page pdf download has all the parts specifications for making an inexpensive Planet Whizbang wheel hoe. The Planet Whizbang wheel hoe design was developed by Herrick Kimball in 2009. It is a remarkably efficient tool for cultivating the garden and destroying weeds.
These specifications come directly out of "The Planet Whizbang Idea Book For Gardeners" (pages 93-100). If you purchase the whole book (available from www.WhizbangGardening.com), you can get the specifications and a whole lot more. But if your only interest is in making the wheel hoe, this pdf download has all the pertinent details.
Step-by-step assembly instructions for the Planet Whizbang wheel hoe can be found at www.WhizbangWheelHoe.com. You can get to that web site by clicking on the word "homepage" at the top, right side of this page.
This wheel hoe design is not patented. You may use these plans to make and sell wheel hoes as a small business venture.