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The QL60A DTH Drill Bit Series from YKDrill is engineered for high-efficiency deep-hole drilling in hard and abrasive rock formations. These bits feature a heavy-duty design, concave or flat face options, and domed tungsten carbide buttons to ensure durability, directional stability, and long service life.
Compatible with 6'' QL60A hammers, these drill bits offer powerful performance in water well drilling, mining, geothermal exploration, and foundation construction.
| Head Shape | Head Diameter (mm) | Shank Length (mm) | Spline | Port Holes | Button Type | Gauge Buttons | Front Buttons | Weight (Kg) |
|---|---|---|---|---|---|---|---|---|
| Concave Face | 154 | 253 | 12 | 2 | Domed | 8 × Ø18mm | 4 × Ø16mm + 4 × Ø15mm | 22.5 |
| Flat Face | 165 | 253 | 12 | 2 | Domed | 8 × Ø18mm | 8 × Ø16mm | 23.0 |
| Concave Face | 171 | 253 | 12 | 2 | Domed | 8 × Ø18mm | 6 × Ø16mm + 4 × Ø15mm | 24.4 |
| Concave Face | 178 | 253 | 12 | 2 | Domed | 8 × Ø18mm | 6 × Ø16mm + 5 × Ø15mm | 25.3 |
| Concave Face | 190 | 253 | 12 | 3 | Domed | 9 × Ø18mm | 6 × Ø16mm + 5 × Ø15mm | 26.5 |
| Concave Face | 203 | 253 | 12 | 2 | Domed | 10 × Ø18mm | 8 × Ø16mm + 6 × Ø15mm | 29.7 |
✅ QL60A Shank – Suited for standard 6-inch high-pressure hammers
✅ Large Diameter Range – Ø154mm–Ø203mm for deep borehole applications
✅ Domed Carbide Buttons – Excellent wear resistance and long service life
✅ Concave/Flat Face Options – Enhanced centering or uniform penetration
✅ High-Strength Alloy Steel Body – Heat treated for superior toughness
✅ Optimized Flushing Ports – 2 or 3 holes ensure faster cuttings removal
⛏️ Mining – Bench blasting, production drilling
💧 Water Well Drilling – Deep, large-diameter wells
🌡️ Geothermal Energy – Hot zone and high-pressure drilling
🏗️ Foundation Engineering – Piling, anchoring, and ground support
🌐 Infrastructure Projects – Dams, tunnels, bridges
Packaging: Steel rack or fumigation-free wooden box
MOQ: 1 piece
Lead Time: 5–10 working days
Shipping: Air, sea, or international courier (DHL/FedEx)
🏭 15+ Years Experience in DTH tools manufacturing
✨ Strict QC System – 100% tested before delivery
🛠️ Customization Available – Buttons, face, port size configurable
🌍 Global Delivery – Exported to over 40 countries
📞 Responsive Team – Technical support & sales assistance
Want powerful QL60A DTH bits for your drilling project? Get in touch with YKDrill for a quick quote or customization options!
💼 Company: YKDrill
📧 Email: ykdrill@ykdrill.com
🌐 Website: www.ykdrill.com
