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Polycrystalline Diamond: Manufacture, Wear Mechanisms, and Implications for Bit Design
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no DOI — not checked"Multiple Blow Percussion Drill Assembly With Rapid Field Maintenance and Adjustment Capability"
no DOI — not checked"Improvements in and Relating to Impact-Action Self Propelled Mechanism for Driving Holes in the Earth"
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no DOI — not checked"Specific Energy As a Criterion For Bit Selection"
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no DOI — not checked"Percussion Drilling Tool Increases Bit Footage"
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no DOI — not checked"Diamond-Enhanced Hammer Bits Reduce Cost Per Foot in the Arkoma and Appalachian Basins"
no DOI — not checked"The Bassinger Rotary Percussion Drill"
no DOI — not checked"Rotary Percussion Drilling. A Review and a Prediction"
no DOI — not checked"Air Percussion Drilling Assembly For Directional Drilling Applications"
no DOI — not checked"Recent Advances in Polycrystalline Diamond(PCD) Technology Open New Frontiers in Drilling for Bit Design"
no DOI — not checked"Effects of Low Frequency Percussion In Drilling Hard rock"
no DOI — not checked"Tool Boosts drilling in Hard Formations"
no DOI — not checked"Air drilling Operations Improved by Percussion Bit/Hammer Tool Tandem"
no DOI — not checked"Rotary Percussion Drilling in West Texas"
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