Millers Falls 510 USA Machinist 6" Inside Caliper Spring Type & Screw Nut D165

Description

Note: D-165 is my inventory # only.
Here is a
vintage pair of Millers Falls USA No. 510 inside calipers in the 6" size.
They are the spring-type with a solid-type screw nut.  They work great and can measure the full 6" size range.  There is a previous owner name engraved on them.  Nice pair for their age and they work great.
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