1. Purpose: To bolt pierced through.2. Requirements:-Position hole tolerance: Need exactly the same threaded holes with sheet or peel the mold plates are high.-Tolerances on dimensions diameter: do not need high because not to join the Assembly. But need to ensure bigger diameter bolts, to easily removable bolts.-For example: Ø10 (mm) bolt, select Selection level of precision of the hole is 15 D tolerance distributed domain > the real diameter of holes from 10.04 > 10.62 (mm).3. The method of machining: drilling.
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