Optical tube binocular(20? inclined)
Eyepiece(wide field) 10X (view field .87″ DIA)
Objective 0.8X~8X (zoom)
Zoom ratio 1:10
Infinity parallel optical system and 20? inclined optical tube reduce fatigue.
Coaxial illumination is optical for deep holes that cannot be observed by ring light.
Aperture diaphragm is optional for large depth for dield and high quality image.

Insize 1176-200, DIGITAL INSIDE GROOVE CALIPER, upper jaw .35-8"/9-200mm, lower jaw .70-8"/17-200mm, 6940561952179
3M 20244, Neoprene Rubber and Gasket Adhesive 2141, Light Yellow, 1 Gallon Can, 7000121215, 4/case 