I bought a rusty 6x6 fine pole magnetic chuck on eBay last year, and today we're going to clean it up and grind it in. The chuck is a Suburban Tool MC66FPS1 and the seller claims it was new, but "has some rust problems". I'll say it has rust problems. Let's see how bad the damage is and if we can fix it.

Tools used in this video:
*This site contains affiliate links for which I may be compensated

Aventor 12" DPS IP54 Height Gage (Amazon*): https://amzn.to/2WGlB40
Mitutoyo .0001" Dial Indicator (Amazon*): https://amzn.to/3FgUMdn
Mahr Millimess Dial Comparator (Amazon*): https://amzn.to/475orCH
General Tools Carbide Scribe with Magnet (Amazon*): https://amzn.to/45tMsSD
Bondhus Metric Hex Key Set (Amazon*): https://amzn.to/3eqZzwb
Bondhus SAE Hex Key Set (Amazon*): https://amzn.to/3h9bJLZ
WD40 Gallon (Amazon*): https://amzn.to/3u2ONq3
Scotch Brite Gray Ultra Fine (eBay*): https://ebay.to/2QRJUXN
General Tools Tap Wrench Set (Amazon*): http://amzn.to/2znrcOW
Noga MC1700 MiniCool Kit (Amazon*): https://amzn.to/2qgemiM

Raw Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...

00:00 Introduction
01:00 Examination: Is this really NEW?
03:53 A little cleanup
06:36 Pregrind Inspection
10:13 Grind the Top
14:22 PostGrind Inspection: Yikes!
16:39 Grinding the Bottom
18:02 Dusting off the Grinder Chuck
19:58 ReGrinding the Top
20:45 Post ReGrind ReInspection
23:43 Conclusion