A bit more on the Turbotune String Winder.
My partner, Dave Jeffrey, country Western Bass Player extraordinaire, came up with the idea when he was about 12 years old. I met him when I opened my first shop in Pleasanton, CA. He came in one day and showed me his idea and asked me if he could do some work on it there. On the third time he came back he asked me if I could help him develop it further and I said yes if I could partner with him on it. He said yes so I worked on it for awhile and discovered that I could create several cavities that would fit 15 different tuner designs, 12 guitar and 3 bass. I did the design drawings and we had a machine shop hog out 5 samples which I used to make a mold for liquid resin casting. A hex shaft was added to the mix to allow them to be used in cordless drills and screwdrivers, I made prototypes with shaft in and we showed it to a friend of Dave's who worked for Dean Markley. They gave a down payment towards a license deal and with that we got a Utility Patent and Markley had them made in China and got it on the market for us. That was in 1999 - 2000 and we're still selling them. Dave's touring tech buddies have raved about them ever since and hundreds of guitar repair shops use the heck out of them. We actually started selling them through Stewart McDonald while still making them by hand in my shop.
Here's the heading for our warehouse product order sheet. The handle was an upgrade for those who wanted them.