3M 64319, Cubitron II Depressed Center Grinding Wheel, T27 Quick Change, 7 in x 1/4 in x 5/8-11 in, 7100103317, 20 per case 
Insize ISM-PM200SA, DIGITAL MEASURING MICROSCOPE, 6928640322969
$469.70
Magnification 10X~200X. Type short focus distance.
Pixel 2M (resolution 1600_1200). IIlumination built-in adjustable LED.
Power supply USB 2.0 cable (voltage required 5?0.1V).
Can take pictures and videos. Supplied with software.
Supplied with software.
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