MULTI-SECTIONAL PERCUSSIVE DRILL BIT ASSEMBLY
A multi-sectional percussive drill bit assembly for drilling holes in earth formation primarily used in conjunction with a pneumatic percussive device. The drill bit assembly is comprised of an easily removable bit that is rotationally driven by a lug and pocket structure and axially limited in trav...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
18.01.2012
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Subjects | |
Online Access | Get full text |
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Summary: | A multi-sectional percussive drill bit assembly for drilling holes in earth formation primarily used in conjunction with a pneumatic percussive device. The drill bit assembly is comprised of an easily removable bit that is rotationally driven by a lug and pocket structure and axially limited in travel by means of retaining members. |
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Bibliography: | Application Number: EP20060844818 |