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Starrett Screw Thread Calculator 1940's + Chart
This is a very nice clean Screw Thread calculator marked "THE L.S. STARRETT COMPANY ATHOL MASS. U.S.A. PRINTED IN U.S.A." The calculator is two piece, the top section spins, for finding sizes of tap drills for NC and NF, also NPT on the back side. They calculator is printed on a...
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Great Expectations Antiques
44516 Fairground RoadCaldwell, OH 43724United States
Updated Thursday, June 30 2022Product descriptions copyrightę 2022 Great Expectations AntiquesAll else copyrightę 1995-2022 TIAS.com All rights reserved.