00229
Available in 190mm, 195mm, and 203mm, these bits are widely used in mining, construction piling, geothermal projects, and large borehole water well drilling.
| Head Shape | Head Diameter (mm) | Shank Length (mm) | Spline | Port Holes | Button Type (Optional) | Gauge Buttons | Front Buttons | Weight (Kg) |
|---|---|---|---|---|---|---|---|---|
| Concave Face | 190 | 220 | 10 | 3 | Domed | 9 × Ø18mm | 6 × Ø16mm + 5 × Ø15mm | 29.5 |
| Concave Face | 195 | 220 | 10 | 3 | Domed | 9 × Ø18mm | 6 × Ø16mm + 5 × Ø15mm | 30.3 |
| Concave Face | 203 | 220 | 10 | 2 | Domed | 10 × Ø18mm | 8 × Ø16mm + 6 × Ø15mm | 31.5 |
✅ SP780 Shank Interface – Heavy-duty structure for extreme drilling conditions
✅ Concave Face Design – Promotes excellent centering, fast drilling speed, and chip evacuation
✅ Domed Tungsten Carbide Buttons – Designed for long life in abrasive formations
✅ Optimized Button Layout – Balances impact and wear resistance across drilling surface
✅ Large Air Flow Channels – 2–3 air holes ensure efficient cooling and debris removal
✅ Strong Body – High-grade alloy steel with heat treatment for maximum strength
⛏️ Mining – High-efficiency drilling in hard rock quarries and open-pit mines
🏗️ Foundation Construction – Piling, anchoring, and micro-pile drilling
💧 Water Well Drilling – For large-diameter deep boreholes
🌋 Geothermal Energy – Suitable for deep heat-exchange well drilling
Packaging: Export-grade wooden box or custom pallet
Lead Time: 5–10 business days
MOQ: 2 pcs per size
Shipping Methods: Sea, air, or international express (DHL, UPS, FedEx)
🏭 15+ Years in DTH drilling tool production
📐 Customizable design for button layout, face shape, and flushing holes
🧪 Strict QC & full inspection before delivery
🌐 Fast delivery & global shipping support
💬 Responsive technical support for projects of all scales
Need high-performance, large-diameter DTH bits with SP780 shank? Get in touch now for quote or technical assistance.
💼 Company: YKDrill
📧 Email: ykdrill@ykdrill.com
🌐 Website: www.ykdrill.com
