A system of excavating by means of gullets or channels.(noun)
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Use "gulleting" in a sentence
"The job used to be done by hand, with files, and Eric records in A Million Wild Acres how Bert Ruttley, who worked for Jack Underwood at the Rocky Creek Mill for thirty years, would wear out four files every weekend, gulleting the circular saws to lengthen their worn teeth."
"The round edge of the millsaw file is used for gulleting"
"Note: Badly worn saws may need gulleting before sharpening begins."