Fast, easy hole cleaning makes RC drilling a tried and true method, particularly for large-diameter holes.

The Metropolitan St. Louis Sewer District (MSD) is upgrading its storm and wastewater infrastructure in a 23-year-long, $4.7 billion initiative called “Project Clear.”

Foremost Dual Rotary drills feature a comparably lower rotary drive that is used to advance steel casing through unconsolidated overburden.

The task was completed earlier than expected, in four weeks, despite delays in project startup.

 Atlas Copco recently announced the release of a reverse circulation kit for the company’s DM45/50 mid-range blasthole drill. The company says the kit adds a new dimension of in-pit grade control.