For your convenience we have the IADC Classification Chart here online in PDF format. Simply select the one you desire and your browser will load it accordingly. Once completed simply use your browsers back button to return to this page.
And finally we provide here a chart of API Casing Dimensions & Bit Clearance Data:
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19475 Creek Road • Bakersfield, CA 93314
Tel: 661.746.6100 •Fax: 661.746.6161