'''Note''': For a precise hole, point the center with a pin, pre-drill with a drill of small diameter and then at 12mm. Choose [http://www.usinages.com/threads/vitesse-de-rotation-pour-percage.4390/ speed of the adapted rotation] material and diameter of drill. Lubricate well during drilling.
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'''Note''': For a precise hole, point the center with a pin, pre-drill with a drill of small diameter and then at 12mm. Choose a [http://www.usinages.com/threads/vitesse-de-rotation-pour-percage.4390/ rotation speed adapted to] material and diameter of drill. Lubricate well during drilling.
Version actuelle datée du 15 août 2021 à 10:51
Note: For a precise hole, point the center with a pin, pre-drill with a drill of small diameter and then at 12mm. Choose a rotation speed adapted to material and diameter of drill. Lubricate well during drilling.
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