Drill King International is a leading provider of DTH Hammers engineered for precision and efficiency in demanding drilling environments. The DK Hammer Series spans 2" to 24", delivering high-frequency, premium-alloy performance for mining, construction, water well, quarrying, and exploration drilling, with hole diameters from 2¾" to 42". Every hammer shares the same core design, differing only in scale to suit varying hole sizes and ground conditions. This range ensures a Drill King hammer is matched to virtually any drilling requirement and compressor output.
When it comes to drilling precision and efficiency, Drill King International stands as a leader in the industry, offering a comprehensive range of DTH Hammers tailored to meet the toughest demands. Every hammer in the DK Series shares the same high-frequency design and premium-alloy construction — the difference is scale. From compact 2″ hammers built for tight water well and geotechnical bores, to 24″ giants engineered for large-diameter blast holes and foundation shafts, there’s a Drill King hammer matched to your hole size, ground conditions, and compressor output.
Not sure which size fits your project? Talk to our team — we’ll help you match hammer size, shank configuration, and bit selection to your rig and formation.
Drill King's smallest DTH hammer — a compact, valved BR2-platform tool for 2.75"–3.5" (70–90 mm) bits, optimized for…
High-frequency 3-inch DTH hammers on the trusted IR3.5 platform — standard HADK-A30I and extended-body HADK-A30I-XT for water well,…
The A40 series delivers reliable high-frequency performance for 4"–5" bits, in three industry-standard shank configurations — IR340, SD4,…
The A50 series brings high-frequency, high-torque performance to medium-to-large diameter drilling — five models covering IR350, SD5, and…
Six models on a common 6-inch platform — IR360, SD6, QL6, QL6HD, and QL60 shanks, including blow-tube-free T600UCQ…
Four models on a robust 8-inch platform — IR380, SD8, and QL80 shanks plus the blow-tube-free T800UCQ —…
High-energy, high-torque hammers for 9.5"–18" holes. Six models across NUMA 100, SD10, SD12, IR112, and QL120 shanks —…
Drill King's largest-class DTH hammer for 17"–20" (432–508 mm) bits. A 528 lb hardened piston delivers more energy…
Ultra-class DTH hammer for 18"–24" (457–610 mm) bits. The 717 lb hardened piston — the most powerful in…
Drill King's largest and most powerful DTH hammer, for 24"–34" (610–864 mm) bits. A 1,150 lb piston and…
High-frequency design ensures the fastest penetration rates in the industry across every hammer size, significantly reducing time-on-site and operational costs.
A streamlined, simple design allows for easy maintenance and uses "Eco Kits," keeping your equipment in the field and out of the shop.
Built from premium alloys and treated with advanced wear-resistance technology, our hammers withstand the harshest geological conditions at any bore diameter.
Fully compatible with industry-standard bit shanks (IR, DHD, QL, and SD) across the size range, for easy integration into your existing fleet.
| Hammer Size | Typical Hole Range* | Primary Applications |
|---|---|---|
| 2" | 2¾" – 3" | Water well, geotechnical investigation |
| 3" | 3½" – 4½" | Small-diameter water well, geotechnical |
| 4" | 4¾" – 5½" | Water well, light construction |
| 5" | 5¾" – 6¾" | Construction, quarrying |
| 6" | 6¾" – 8" | Mining & quarrying blast holes |
| 8" | 8" – 10" | High-volume mining production |
| 10–12" | 10" – 14" | Large-diameter water well, foundation |
| 15" | 15" – 18" | Large-scale mining, blast holes |
| 18" | 18" – 22" | Heavy foundation, shaft drilling |
| 24" | 24" – 30"+ | Mega-diameter production, piling |
*Approximate ranges provided for initial planning only. Confirm precise bit-to-hammer pairings against Drill King's official technical specification sheet for each model before ordering.
For foundation drilling, strength and stability are essential. Our DTH Hammers deliver the power required to penetrate challenging ground conditions for building foundations, bridges, and infrastructure.
Mining and quarrying demand heavy-duty equipment capable of performing in the toughest conditions. Our hammers drill through hard rock with outstanding durability and efficiency.
In exploration drilling, accuracy and sample quality are essential. Our hammers ensure efficient removal of cuttings, enabling clean and accurate sampling for informed decision-making.
Drill King specializes in professional water well drilling using advanced DTH technology, delivering efficient and precise results across a wide range of ground conditions.
Drill King's DTH systems deliver the durability and consistent torque needed to punch through variable rock, helping crews reach depth faster with fewer trips out of the hole.
From residential loop fields to large-scale geothermal installations, our tools are trusted to deliver precise, efficient boreholes on the first pass.
Hammer size is selected based on your target hole diameter, ground conditions, and compressor capacity. As a general rule, each hammer size drills a range of hole diameters slightly larger than its nominal bore — for example, a 6″ hammer typically runs bits from roughly 6¾” to 8″. Our team can confirm the right size and shank configuration for your rig and application.
Smaller hammers (2″ to 5″) are typically used for water well, geotechnical, and blast-hole drilling where hole diameters and rig air capacity are limited. Mid-range hammers (6″ to 12″) cover most mining, quarrying, and foundation work. Large-diameter hammers (15″ to 24″) are built for high-volume production drilling, large-diameter blast holes, and heavy foundation or shaft applications.
Yes. The DK Hammer Series is engineered for compatibility with industry-standard shank configurations including IR, DHD, QL, and SD, allowing the hammers to integrate into most existing drill fleets without costly modification.
Yes. Selected models across the DK Hammer Series are available in Heavy-Duty (HD) configurations, engineered with enhanced wear resistance for high-abrasion ground conditions and demanding production environments.
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
