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Home › Forums › Clocks and Scientific Instruments › Telephone Rentals : Master Clock
Many thanks for that, Clive !
It will have to wait until tomorrow to get a better image, but here’s a snapshot I took of the thing in-situ.
The arbor [by my caliper measurement] is 0.0620” diameter.
MichaelG.
.
@Clive
I have just done a direct check on the [now slightly closed] diameter of the hole in that collet … using one of the lovely gauges that I bought from Dell.
I would read this as about 0.0613” … which sits quite nicely with my measurement of the arbor.
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