Don't let their small size fool you, these are precision made hand crafted inspection tools! Some times called pocket microscopes they are also
Depth Measuring Microscope Peak 2008 (DMR) 25x to 100x : Peak Optics, Magnifiers, Comparators, Loupes, For Inspection & Measuring, 2x to 300x
スケール付小型マイクロスコープ(正立像タイプ)/M228PMS-3161161T/測定/包装/物流/専門 - 株式会社シロ産業
AmScope K104-ZZ Elementary Stereo/Dissecting Microscope, 10x and 25x Eyepiece, 20x-50x Magnification, Reversible Black/White Stage Plate, Heavy-Duty Frame : Electronics
3 mm viewing area Complete with focus adjustment and measuring reticle.
Pen microscopes 3 mm viewing area
Peak DMR-25X Depth Measuring Microscope - Beta Industries (Beta Screen)
Peak Pocket Microscopes 25X & 50X - Penn Tool Co., Inc
Magnification: 25X. Original Peak Pocket Pen Micr oscope 25x Portable Magnifier 2001-25X. Field of view: 3.30mmφ. Weight: 12g.
Peak 2001-25X Pocket Microscope Pen,25X Magnification,3.30mm Field of View 1Pcs
Kính lúp peak 7X,10X,15X,20X,30X, kính phóng đại, peak loupe
Japan Magnifier - Australia