OldTools Archive
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270477 | John Ruth <johnrruth@h...> | 2020‑04‑11 | Re: update on boredom project-side plate for MF #7 skew block plane |
Bruce, On an initial threading, you want to CUT metal. You want to see chips fall out. On a re-thread, you want to DISPLACE metal, essentially by bending it back to where it belongs on the ridges. You really don’t want to see chips, although there will likely be a few. John Ruth “Of threads, and threading systems, there is no end!” |
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