Standard Abrasive 78548, Ceramic Pro Type 29 High Density Flap Disc, 645183, 4 1/2 in x 7/8 40 Y-weight, 7010292440 
Insize 1155-505, DIGITAL HIGH PRECISION HEIGHT GAUGES, 0-2″, 6940561937237
$4,343.47
Resolution .00002″/.5um (can switch to .00005″/1um)
Power supply: 5V/1A (adapter or chrge pal)
High stability, high precision, high response speed(200″/s)
High brightness LED display
Ceramic base flatness:1_m
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