World Oil's 2000 Drill Bit Classifier ///

Annual comprehensive listing of 20 major manufacturers' commercial bits. Divided into six formation types from soft/sticky to extremely hard, tables show name, IADC code, size and performance of each firm's offerings

Log in to view this article.

Not yet a subscriber?  Get started now for immediate access to this content and more.

World-Oil-Free-Trial-2015.jpg

World-Oil-Premium-Subscribe-2015.jpg

Already a subscriber but don’t have an online account? Contact our customer service.