3M 37024, Extra Large Drywall Sanding Sponge 910-DDA, Dual Angle, 2-1/2 in x 8 in x 1 in, Fine, 7010375249 
Insize 2921-E150, ROTARY BORE GAGE, 3.2-5.9″, 6928640357183
$12,577.83
Rotary anvil, to measure bores with small opening
Optional accessory: 0.01mm or 0.001mm graduation dia indicators or dial comparator, setting ring
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