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I build a d-bit grinder from scratch for #roughcut2022 over on youtube to regrind my collection of worn and broken drill bits with a four facet grind.
#roughcut2022: https://www.youtube.com/hashtag/roughcut2022
Emma: https://www.youtube.com/c/EmmaRitson/videos
Stefan Gotteswinters video on the four facet grind: https://www.youtube.com/watch?v=I5b6h1Vddes
By I build a d-bit grinder from scratch for #roughcut2022 over on youtube to regrind my collection of worn and broken drill bits with a four facet grind.
#roughcut2022: https://www.youtube.com/hashtag/roughcut2022
Emma: https://www.youtube.com/c/EmmaRitson/videos
Stefan Gotteswinters video on the four facet grind: https://www.youtube.com/watch?v=I5b6h1Vddes