Item MA20 - The L. S. Starrett & Co. No. 228 Hub Micrometer. 

Another special purpose micrometer, this is a variation of the No. 228 Starrett Hub Micrometer listed in most later Starrett catalogues.  In all of these that I own, this mike is listed as measuring hub lengths of up to 1 inch, and being able to fit in an aperture of only 3/4.  This example, however, measures hub lengths from 1 to 2 inches (in 1/1000) and fits in an aperture no larger than 1.  It may have been a special order item.  It is fitted with a ratchet stop.  It has mild tarnish, and one small area of very light pitting.  Good+

 

Price - $30.00

To Order, email sushandel@msn.com
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