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ASME B18.2.8 Drill Sizes

Thread starter greg2835
Start date Jun 23, 2017

Status: Not open for further replies.

Jun 23, 2017

greg2835

Industrial

The standard states in paragraph 3.1 "The [clearance] drill sizes were selected to provide as practical a step-patterned clearance for the minimum recommended hole." Can someone explain what this means. I am just curious how they determined the clearance hole sizes and it seems to be embedded in this statement.

Thanks in advance for any insight,

Greg