I was in a Big Lots store looking at the cheap tools. I need a way to adjust the pilot air/fule mix, when the motor is hot, without getting burned doing the left side. I found a gray blister pack 7" x 12", that contained a
45 Pc ratchet Screwdriver Set by "Shop Source" mfg in china.
Spending $5 I didn't expect much. But after opening the package, I tried the flex shaft, for a fit, and guess what, it a good fit for the job.