Ed Minch wrote"
> The really strongly tapered ones can be used to clean up the inside of
> a freshly cut metal pipe of varying sizes.
>> On Jan 7=2C 2013=2C at 8:20 AM=2C
Yup=2C this is how my old man (a plumber) used when I was a kid (65
years ago) to clean the inside burr from hard copper and iron pipe cut
with a hack saw. Two other uses come quickly to mind -- coopers tapering
bung holes=2C and leather workers sharpening round leather punches. I'm
sure there are many more uses (judging from how common old tapered
reamers are). Sandy.

 paul womack wrote:
> Who needed strongly tapering holes of varying sizes?

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