From breaking new rock to enlarging an existing hole to driving casing through soft ground, Drill King's DTH Drill Bits range covers every cutting application in the drill string — manufactured from aerospace-grade steel and premium tungsten carbide, sized from 2-3/4” (70mm) all the way to 42” (1067mm).
Not every hole in the ground is cut the same way. A button bit breaks new rock at the bottom of the hole. A hole opener enlarges an existing pilot hole to its final diameter. A drive head bit pushes casing through soft-to-medium ground without breaking rock at all. Three different jobs, three different tools — which is why Drill King engineers and manufactures each as its own dedicated product line rather than a single one-size-fits-all bit.
Every DTH Drill Bit in the range is built from aerospace-grade steel and high-quality tungsten carbide, with options for diamond-enhanced buttons, side wear pads, and back-reaming carbide for the toughest ground conditions. Whether you’re drilling for water wells, construction foundations, mining, or exploration, DKI’s technical team can match the right bit type, head configuration, and size to your project.
Built to break rock, built to last. The widest size range in the DKI drill bit lineup —…
Enlarge any pilot hole, clean and true. Aerospace-grade steel hole openers from 6" to 36" (152–914mm), with 8"/10"/12"…
Casing through soft ground, simplified. A single versatile driver sized 3.5"–4" (89–102mm) that works across multiple casing diameters,…
Premium inserts and optional wear pads extend bit life in hard formations, reducing replacement frequency and downtime.
Engineering that enhances air flushing, improves hole cleaning, and prevents bit burying in softer formations — for faster, more accurate drilling.
From 2-3/4" (70mm) to 42" (1067mm) across the full product range, covering construction, mining, water well, and exploration needs.
Aerospace-grade steel and superior-quality tungsten carbide as standard, with diamond-enhanced button options for extreme conditions.
Head configurations, carbide grades, and wear treatments tailored to your specific ground conditions and project requirements.
Popular sizes kept in stock to minimize downtime and keep projects on schedule.
| Patameter | Button Bits | Hole Openers | Drive Head Bits |
|---|---|---|---|
| Function | Breaks new rock at the bottom of the hole | Enlarges an existing pilot hole to final diameter | Drives casing through soft-to-medium ground |
| Size Range | 2-3/4” – 42” (70 – 1067mm) | 6” – 36” (152 – 914mm) | 3.5” – 4” (89 – 102mm) |
| Best Suited To | Water well, construction, mining, exploration — any new-hole drillingDrive Head Bits | Reaming pilot holes to a larger final diameter | Pushing smaller casing through soft to medium ground |
| Stock Availability | Popular sizes kept in stock | 8” / 10” / 12” (203/254/305mm) in stock | Standard 3” & 4” hammer shanks |
Not sure which bit type your project needs? Our technical team can match the right configuration to your formation, hole size, and hammer — contact us for a project-specific recommendation.
A button bit drills and breaks new rock at the bottom of the hole. A hole opener enlarges an existing pilot hole to a larger final diameter — it doesn’t create the initial hole, it reams it out.
Drive head bits are used to push casing through soft-to-medium ground without rock-breaking action, typically for casing installation rather than rock drilling. They’re sized much narrower (3.5″–4″) than the broader button bit range.
Yes. Drill King offers various head configurations, premium or diamond-impregnated carbide, side wear pads, and back-reaming carbide buttons to match your specific formation.
All three product families are manufactured from aerospace-grade steel and high-quality tungsten carbide, with diamond-enhanced carbide available for the most demanding conditions.
Yes, popular button bit sizes and 8″/10″/12″ hole openers are kept in stock to minimize project downtime.
Tell us your hole size, formation, and application, and our technical team will recommend the right button bit, hole opener, or drive head bit configuration — built to perform, engineered to last, made in the USA.
Built tough enough for the unpredictability of job sites, our equipment minimizes costly downtime and re-drills.
Every hole counts, and our tools are built to keep penetration rates high even in unpredictable, mixed formations.
Engineered for open-pit and underground alike, our tools lower per-meter drilling costs without sacrificing performance.
Engineered for the rigors of well-site conditions, our hammers and bits extend service life while reducing per-foot drilling costs.
Less downtime, fewer bit changes, more material moved. That's the Drill King difference for quarry operators who can't afford to slow down.
From residential wells to large-scale geothermal fields, our tools are trusted to get the job done right the first time
