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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Insize 4180-500, MAGNALIUM STRAIGHT EDGE, length 20", 6928640320545 