I purchased an assortment of bushings on eBay hoping the correct sizes for repair of my 1916 Ingraham striking movement would be in there. This likely was a mistake, better to order what you need, not take a gamble on a random assortment. A lot of them are large enough for grandfather clocks and perhaps even tower clocks . But they were inexpensive . I noticed many of the smaller bushings (all I've looked at so far) have ODs not listed in the KWM chart, so I assume they are Bergeon, unless there are other manufacturers. Alas I purchased KWM reamers before I realized they were not KWM, not clear what I'm going to do with the ones that don't work with my reamers. I guess I can try drills or broaches. Unfortunately the few I measured prior to purchasing the reamers were on the KWM chart, perhaps there's just a mix of everything in there.