Restoring a Rusty eBay Magnetic Chuck - Suburban Tool Sine-Set MC-66-FP-S1

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 MC-66-FP-S1 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 WD-40 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 Mini-Cool 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 Pre-grind Inspection 10:13 Grind the Top 14:22 Post-Grind Inspection: Yikes! 16:39 Grinding the Bottom 18:02 Dusting off the Grinder Chuck 19:58 Re-Grinding the Top 20:45 Post Re-Grind Re-Inspection 23:43 Conclusion