Rock Drill Bit Sizes Explained: The Complete DTH Bit Size Guide (With Chart)

Rock drill bit sizes typically range from 2-3/4″ (70mm) to 42″ (1067mm) in diameter, with the correct size determined by three factors: your DTH hammer class, your required borehole diameter, and your application — whether that’s water well drilling, mining, construction, or quarrying. Choosing the wrong size doesn’t just slow the job down. An under-gauge […]

The Importance of Air Pressure in DTH Drilling: How It Affects Performance

Down-the-Hole (DTH) drilling plays a pivotal role across construction, water well, geothermal, mineral exploration, and oil & gas markets. At the heart of it is the DTH Hammer, which uses compressed air to power the entire drilling process. The efficiency of that process is directly and heavily reliant on air pressure — from drilling speed […]

How DTH Hammers Revolutionize Construction Foundations and Water Wells with Drill King International

The Introduction Experience the next level of efficiency in Construction Foundations and Water Wells with Drill King International’s revolutionary DTH hammers. These game-changing tools are transforming the industry, offering unmatched drilling performance and productivity. In DTH drilling, compressed air is injected into the hammer, driving a piston in a high-velocity cycle that delivers rapid, powerful […]

Product Inquiry

Request a Quote

Great! We’ve received your information.

Construction

Built tough enough for the unpredictability of job sites, our equipment minimizes costly downtime and re-drills.

Exploration

Every hole counts, and our tools are built to keep penetration rates high even in unpredictable, mixed formations.

Mining

Engineered for open-pit and underground alike, our tools lower per-meter drilling costs without sacrificing performance.

Oil & Gas

Engineered for the rigors of well-site conditions, our hammers and bits extend service life while reducing per-foot drilling costs.

Quarrying

Less downtime, fewer bit changes, more material moved. That's the Drill King difference for quarry operators who can't afford to slow down.

Water Well & Geothermal

From residential wells to large-scale geothermal fields, our tools are trusted to get the job done right the first time