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DTH Drill Bit Ø108/115/127/130mm – SD Shank, Convex Face, High Air Pressure
SD Shank DTH Drill Bits from YKDrill are specially designed for high air pressure down-the-hole drilling applications, offering exceptional energy transfer, smooth rock breaking, and extended wear life.
With a convex face and combination of spherical + ballistic buttons, these bits are ideal for drilling in medium to hard rock formations. Sizes range from 108mm to 130mm, suitable for various mining, water well, and construction projects.
| Head Shape | Head Diameter (mm) | Shank Length (mm) | Spline | Port Holes | Button Type (Optional) | Gauge Buttons | Front Buttons | Weight (Kg) |
|---|---|---|---|---|---|---|---|---|
| Convex Face | 108 | 260 | 8 | 2 | Spherical + Ballistic | 7 × Ø16mm | 6 × Ø14mm | 9.0 |
| Convex Face | 115 | 260 | 8 | 2 | Spherical + Ballistic | 7 × Ø16mm | 6 × Ø14mm | 9.3 |
| Convex Face | 127 | 260 | 8 | 2 | Spherical + Ballistic | 8 × Ø16mm | 4 × Ø14mm + 3 × Ø13mm | 10.3 |
| Convex Face | 130 | 260 | 8 | 2 | Spherical + Ballistic | 8 × Ø16mm | 4 × Ø14mm + 3 × Ø13mm | 10.5 |
✅ SD Shank Compatibility – Suitable for standard high-pressure hammers using SD shank
✅ Convex Face Design – Improves penetration and self-centering in fractured and abrasive rock
✅ Mixed Button Types – Spherical for durability and ballistic for high penetration
✅ Efficient Flushing System – Dual air holes ensure proper cleaning and cooling
✅ Heat-Treated Alloy Steel Body – Increases wear resistance and service life
✅ Optimized Weight-to-Strength Ratio – Balances energy transfer and durability
⛏️ Mining & Quarrying – Suitable for open-pit drilling, blast holes
💧 Water Well Drilling – Stable performance in varied formations
🏗️ Construction & Infrastructure – For foundation holes, anchors, micro-piles
🌡️ Geothermal Drilling – Reliable performance in hot and hard ground
Packaging: Export-grade wooden case
MOQ: 2 pcs
Lead Time: 5–10 working days
Shipping: By sea, air, or express (DHL, FedEx, UPS)
🏭 Over 15 years of professional manufacturing experience
📐 OEM & custom design supported (face, buttons, flushing)
🧪 Strict quality control & full inspection before shipment
🌐 Global export to 40+ countries
💬 Fast support team and drilling solutions on demand
Looking for reliable and efficient DTH bits with SD shank? Get in touch now for pricing and technical support.
💼 Company: YKDrill
📧 Email: ykdrill@ykdrill.com
🌐 Website: www.ykdrill.com
