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tab... 进行了评论，
In determining a Countersinked hole from an existing hole. 1. Copy top edge hole to make concentric hole at size of csink head. 2. Move inner hole down into part by same amount ( 90 deg Csink). 3. ...
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Hi. Does this really work properly ? I find an actual countersunk hole and not countersunked counterbore much more difficult. I find the angled face wants to over ride / ignoring the hole dia side ...