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API Spec 7-1 (R2015) Specification for Rotary Drill Stem Elements, First Edition -- Identical to ISO 10424-1:2004, Includes Addendum 1 (2007), Addendum 2 (2009), Addendum 3 (2011)
standard by American Petroleum Institute, 02/01/2006
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The following products now covered by this standard: upper and lower kelly valves,square and hexagon kellys,drill-setem subs,drill collars,drillng and coring bitsRotary shouldered connections and gauging for drill stem elements are covered in API Spec 7-2.
This edition of API Spec 7-1 is the modified national adoption of ISO 10424-1, Petroleum and natural gas industries-Rotary drilling equipment-Part 1: Rotary Drill stem elements. This specification contains the API Monogram Annex as part of the U.S. national adoption.