Purpose-built to push smaller casing diameters through soft-to-medium ground conditions — a single, versatile design sized 3.5" to 4" (89–102mm) that works across multiple casing diameters from one driver.
Not every casing job calls for breaking hard rock. In soft-to-medium ground, the priority is simply getting casing safely and efficiently to depth — and that’s exactly what DKI’s Drive Head Bits are built for. Rather than a rock-cutting bit, the drive head bit acts as a driving shoe that pushes casing through the formation, with side inlet air holes engineered to keep adequate flushing through the drive.
The system is intentionally simple: one casing driver can be used across multiple casing diameters within the 3.5″–4″ (89–102mm) range, and the bits come with standard 3″ and 4″ hammer shanks — meaning most rigs already running standard DTH equipment can put a drive head bit to work without additional tooling investment.
A single casing driver covers multiple casing diameters within the 3.5"–4" range, simplifying tooling inventory.
Built with standard 3" and 4" hammer shanks, fitting most existing DTH rig setups without modification.
Side inlet air holes ensure adequate flushing through the drive, keeping the bit clear and reducing the risk of binding.
Manufactured to the same quality standard as Drill King's full DTH Drill Bits range.
Designed specifically for soft-to-medium ground conditions where casing needs to be driven rather than drilled through hard rock.
| Specification | Detail |
|---|---|
| Size Range | 3.5” – 4” (89 – 102mm) |
| Hammer Shank Compatibility | Standard 3” and 4” shanks |
| Materials | Aerospace-grade steel |
| Customization | Side inlet air holes for flushing; one driver fits multiple casing diameters |
| Manufacturing Standard | ISO 9001:2015, Made in the USA |
Working with a non-standard casing diameter outside the 3.5”–4” range? Contact our technical team to discuss custom drive head configurations.
Driving casing to depth on water well programs in soft-to-medium ground.
Casing support for investigation bores.
Monitoring and sampling bores requiring cased holes.
Casing installation on small-diameter foundation projects.
Any casing-only application where rock-breaking action isn't needed.
A button bit drills and breaks new rock. A drive head bit is designed to push casing through soft-to-medium ground without needing to break hard rock, making it a simpler, more cost-effective solution for casing-only applications.
Yes. One casing driver can be used across multiple casing diameters within the 3.5″–4″ (89–102mm) range.
DKI Drive Head Bits come with standard 3″ and 4″ hammer shanks, fitting most existing DTH rig setups.
No — drive head bits are purpose-built for soft-to-medium ground. For hard rock casing advance applications, see Drill King’s Casing Advance Systems (Wing King and Ring Bit).
Tell us your casing size and ground conditions, and we'll confirm the right drive head bit setup for your rig — 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
