Rock auger, rock bucket or core barrel?
The tool choice depends on the ground, drilling method and rig as well as the target diameter. Use this guide to narrow the conversation, then confirm the configuration against the actual project requirements.
What each tool does
- Rock auger: a flighted tool for rotary excavation. Specify the ground conditions, diameter, pilot arrangement and cutting teeth.
- Rock bucket: cuts and collects spoil in its shell. Confirm the base, teeth, shell geometry and operating conditions.
- Core barrel: cuts an annular path into hard material; the cutting arrangement may use bullet teeth or roller bits. Confirm the formation and intended cutting layout.
- Cleaning bucket: removes loose material from the bottom of the bore. Confirm the bore diameter and cleaning arrangement.
Do not select on diameter alone
Two tools with the same nominal diameter can have different connections, tooth patterns and working lengths. Ground descriptions such as ‘rock’ may cover very different conditions. Share the geotechnical report or a concise description of the layers, including any obstructions, where available.
The product tables on this site show reference sizes from the supplied lineup. They are a starting point for an inquiry, not a promise that every configuration is available or compatible with every rig.
What to send with your inquiry
- Rig make and model, drilling method and Kelly connection dimensions; include a measured drawing or clear photos if possible.
- Required bore diameter, tool working length and expected depth.
- Ground layers and whether drilling is dry or uses fluid; include the geotechnical information available to you.
- Preferred cutting setup, quantity, delivery location and target date.