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SD Shank DTH Drill Bits by YKDrill are designed for deep-hole, high-efficiency drilling in hard and abrasive formations. Featuring spherical tungsten carbide buttons, a rugged heat-treated steel body, and optional concave or flat face designs, these bits deliver excellent penetration, wear resistance, and borehole straightness.
Available in 154mm to 203mm diameters, this SD series is well-suited for large-scale mining, water well, geothermal, and construction foundation drilling.
| Head Shape | Head Diameter (mm) | Shank Length (mm) | Spline | Port Holes | Button Type | Gauge Buttons | Front Buttons | Weight (Kg) |
|---|---|---|---|---|---|---|---|---|
| Concave Face | 154 | 322 | 8 | 2 | Spherical | 8 × Ø18mm | 4 × Ø16mm + 4 × Ø15mm | 25.0 |
| Flat Face | 165 | 322 | 8 | 2 | Spherical | 8 × Ø18mm | 8 × Ø16mm | 25.8 |
| Concave Face | 171 | 322 | 8 | 2 | Spherical | 8 × Ø18mm | 6 × Ø16mm + 4 × Ø15mm | 27.3 |
| Concave Face | 178 | 322 | 8 | 2 | Spherical | 8 × Ø18mm | 6 × Ø16mm + 5 × Ø15mm | 28.2 |
| Concave Face | 190 | 322 | 8 | 3 | Spherical | 9 × Ø18mm | 6 × Ø16mm + 5 × Ø15mm | 29.4 |
| Concave Face | 203 | 322 | 8 | 2 | Spherical | 10 × Ø18mm | 8 × Ø16mm + 6 × Ø15mm | 32.5 |
✅ SD Shank Compatibility – Fits standard SD series hammers (SD4/SD5/SD6 class)
✅ Concave/Flat Face Options – Choose based on formation stability and drilling speed
✅ Spherical Buttons – Best for longevity in hard, abrasive rock environments
✅ Robust Air Flushing Design – 2–3 port holes for better dust removal and cooling
✅ Balanced Cutting Structure – Ensures borehole straightness and energy efficiency
✅ Premium Heat-Treated Alloy Steel – Long-lasting under tough field conditions
⛏️ Mining and Quarrying – For blast holes and bench drilling
💧 Water Well Drilling – Suitable for deep boreholes and large diameters
🌡️ Geothermal Energy Projects – For high-efficiency energy well drilling
🏗️ Infrastructure & Piling – Anchoring, foundation, micro-pile drilling
🌋 Exploration Drilling – Deep rock strata and hard formation exploration
Packaging: Durable wooden crates or metal frames
MOQ: 2 pcs per model
Delivery Time: 5–10 working days after order
Shipping Methods: Sea freight, air freight, or express (DHL, FedEx, UPS)
🏭 Factory Direct: 15+ years of DTH drill bit manufacturing
💡 Custom Options: Tailored face design, button layout, and flushing
✅ 100% QC Passed: Full inspection for quality assurance
🌐 Global Reach: Exported to 40+ countries
💬 Responsive Service: 24/7 customer and technical support
Looking for large-diameter, high-performance SD DTH Bits? Contact YKDrill for a free quote and expert consultation.
💼 Company: YKDrill
📧 Email: ykdrill@ykdrill.com
🌐 Website: www.ykdrill.com
