triptic eines

Serveixen per colpejar un material per tal de doblegar–lo, aixafar-lo...

Permeten retenir o subjectar un material o peça en una posició però només perquè puguem treballar –lo amb altres eines.

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Mitjançant el fregament amb un material més tou, l’erosionen arrencant-ne trossets (encenalls), de manera que el rebaixen o poleixen. Permeten foradar un

material (fer un trepatge)

Permeten aplicar una força en sentit de rotació sobre elements d’unió que es poden desmuntar.

Serveixen per mantenir un material o peça en una determinada posició o subjectar-lo per doblegar-lo o modificar-lo.

Serveixen per dividir el mateterial en 2 trossos o més, o bé arrencar-ne un tros amb un tall

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