3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case 
Insize 2127-10, DIGITAL BORE GAGE (setting ring is not included), 6-10″, 6974029771620
$476.76
With digital indicator, part no. 2108-10EF, range .5/12.7mm, resolution .0001″/0.002mm
Optional accessory: setting ring, long handle, bore gage setter
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