May one extract and replace a knife that was wedged into a barrel before Shabbat?

ShabbatProhibited Labors

Synopsis

A knife wedged into a barrel before Shabbat may be extracted and replaced because there is no intent to widen the hole. The Rema requires that the knife have been extracted once before Shabbat to avoid it being a pesik reisha.

Early Acharonim
Lenient
Strict
Lesser cited
Major authority

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