For many of us — myself included — grinding a gouge or scraper for the day’s turning repeats a fairly familiar process: start the grinder, adjust the jig, apply the tool edge. Rinse and repeat. But how much time do we spend learning about the chemical composition of what’s in that tool or how the abrasive on that grinding wheel actually cuts it, microscopically? If you’re a bit foggy about it all, pull up a chair next to Tom Wirsing, a physicist, and let him walk you through an excellent overview of the latest tool steels and CBN grinding wheels. His AAW feature article is admittedly a lot to process. You may need to read it twice, but the overview may just change your decision about the tools you buy and use in the future.
Chris Marshall, Woodworker’s Journal
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