Tricone Rock Bits - Ibbotson Drilling Services
HOLE OPENERS. The hole - openers are designed for reaming of the following bore- holes: Waterwells with diameter from 8 ½” to 48”; Hole-openers designed for waterwell drilling can be equipped with a 3-cone roller bit as a pilot. Holes can be reamed with a single hole-opener or with a set of hole-openers connected as ...
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ibbotsondrillingservices's website is ibbotsondrillingservices.com