3M 27628, Flange Adapter 6 in Radial Bristle Brush Set, 2 in x 1 in, 7000028515 
3M 26104, PPS Series 2.0 Adapter, Type S20, 1/8 Male, 27 Thread NPSM, 7100135929 
Insize ISM-PM40, PORTABLE MEASURING MICROSCOPE, 40X, 6928640371073
$312.49
Total magnification 40X. Eyepiece 10X with graduation.
Objective (achromatic) 4X (numerical aperture: 0.1).
Working distance .71″. Graduation .001″/0.025mm.
Viewing field .18″DIA. Focus range 1.18″DIA.
Illumination LED light. Diameter of base 2.48″DIA
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