Journal
Journal & Field Notes
Field notes, product spotlights, and the occasional manifesto.
7/20/2026
Drill Pipe: How to Select the Right String for Your Rig
Drill pipe is the connection between the rig and the hole. Here is how to spec drill pipe by ID, OD, grade, connection, and formation.
Read →
7/20/2026
DTH Bits vs Top Hammer: Which Drilling Method to Choose
Down-the-hole hammer or top hammer? A practical comparison of DTH bits, DTH hammers, and top hammer tooling for blasthole, water well, and geothermal work.
Read →
7/20/2026
Drill Oil Selection: Rock Drill Oil, Bio Oil, and What Actually Goes Down the Hole
Which drill oil belongs in your air line and hydraulic system? A field guide to rock drill oil, bio-based drill oils, and cold-weather formulations.
Read →
7/20/2026
Geothermal Drill Rig Buyer's Guide: Loop Loader, Comacchio, and What to Ask Before You Buy
What to look for in a geothermal drill rig — vertical loop installation, tooling, and service network. A field-tested buyer's guide.
Read →