3M 65491, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH5220TRI-10I, 5 inch UH, 220, 7100202878, 10 per pack 
Insize ISH-PHA, PORTABLE LEEB HARDNESS TESTER, 6928640325212
$2,355.29
PORTABLE LEEB HARDNESS TESTER
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