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Need some help with a Northern Mfg. & Engineering Hardness Tester

rimcanyon

Diamond
Joined
Sep 28, 2002
Location
Salinas, CA USA
This poor instrument has seen better days. It came out of the Oak Grove High School metal shop, and appears to have been adjusted by bending the needle on the gauge. The spring setting for the scale is on the wrong range to get it to work at all.

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