(SkipSkip) Wait ......you have 238 drills??
Well, not exactly - I have cataloged around 260 of them so far, and still have enough more to "coast" to maybe 280. I have also cataloged roughly the same number of "conversion tools" [for those who haven't seen my description, this is what I call devices which turn a drill into something that doesn't merely bore holes. These include an incredible variety, with hedge trimmers, circular-, saber-, hole-, reciprocating-, hack-, and band-saws, fish scalers, floor buffers, lathes and well over 100 other types known: I have generated a long list!]. I have enough more items in this group to surpass 300, easy. That's how I started down the slippery slope; I started buying cheap drills, thinking that I'd simply leave one attached to each conversion tool that I collected, making it easy to demonstrate how it worked, or to actually USE it. At a dollar or two, drills weren't going to break the bank. I'm STILL finding them at very low-buck prices; everyone else wants double-insulated and/or cordless drills. But yes, I have well over 238 drills.
Speaking of conversion tools: I saw another one that wasn't on my list JUST THIS MORNING on Ask This Old House, episode 1110. It's one of a pair of plumbing tools, one to de-bur and polish the cut ends of water or gas pipe, and another to crimp on a special fitting with O-rings, eliminating the need for pipe threading, pipe dope or Teflon tape, and saving time for professional plumbers. The deburring tool was clearly drill-powered, and I think that the crimper was, too. My list of conversion tools known to have been patented or made [TYPES, not models, brands, etc.] is up around 120, and haven't added this (or these) so far.
The reason that I haven't given exact counts on the three lists mentioned (drills in my collection, conversion tools, I own, and conversion tool types) is that my old computer died a month or so ago, and I haven't gotten my replacement one, with the files on the hard drive transferred over. The old hard drive, and the new computer, are at my son's house, while I work from a backup computer, with only earlier copies of those files on a USB drive here.