Dynabrade 96541 Tune-Up Kit for .4 hp Motor, Rear Exhaust 
3M 60374, Scotch-Brite Roloc Light Grinding and Blending Disc, GB-DR, Heavy Duty A Coarse, TSM, 2 in, 7000000778, 200 per case 
Insize 2433-E180, INTERNAL GROOVE BORE GAGE, 4.7-7.1″, 6928640379062
$9,024.35
Measure diameter of internal grooves (width of groove _3mm)
Anvil is needed
Optional accessory:0.01mm or 0.001mm graduation dial indicators, setting ring
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Insize 0120-IM24, INDUCTIVE MOISTURE METER, 0~100%, 6974029776588
$207.68