8 1/2" Tricone Drill Bits 1-Rubber mealing 2-API or ... faith-based, quality of survival and mutual benefit, provides the highest quality products and attentive service for our customers". ... inch) TypeTricone bits, Steel tooth bits, PDC bits Applicable water well, oil field, construction, geothermal, directional boring, and underground foundation work ... 5517G, 537G, 617G, 627G, 637G roller cone rock bits