Selecting the Right Drilling Tool
- Double-Bottom Sand Buckets: Best suited for sand, silt, and highly weathered formations. The double-bottom design prevents loose soil from dropping out during extraction.
- Core Barrels with Rock Teeth: Equipped with high-strength tungsten carbide teeth, these are engineered to cut a ring into medium-to-slightly weathered hard rock formations.
- Continuous Augers: Ideal for dry soil conditions, stiff clay, or solid bedrock drilling.
- Avoid One-Tool Drills: Matching the tool to the geology is mandatory; forcing a soil bucket into hard rock severely damages drilling teeth and hazards breaking the Kelly bar
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