3M 65489, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH5120TRI-10I, 5 inch UH, 120, 7100202873, 10 per pack 
Insize 3203-10A, OUTSIDE MICROMETER, 9-10″, 6928640327162
$128.91
Graduation .0001″.
Carbide measuring faces.
Ratchet stop type
Supplied with setting standards (except 0-1″).
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