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WK40 Shank DTH Drill Bits from YKDrill are engineered for high-pressure drilling in medium to hard rock formations, delivering high efficiency, smooth chip removal, and extended bit life. These bits feature a Convex Face, Spherical + Ballistic tungsten carbide buttons, and precision-designed air flushing ports, making them ideal for mining, water wells, geothermal, and civil construction projects.
Available in 108mm, 115mm, 127mm, and 130mm diameters, the WK40 series combines durability and performance with cost-effective drilling.
| Head Shape | Head Diameter (mm) | Shank Length (mm) | Spline | Port Holes | Button Type (Optional) | Gauge Buttons | Front Buttons | Weight (Kg) |
|---|---|---|---|---|---|---|---|---|
| Convex Face | 108 | 143 | 8 | 2 | Spherical + Ballistic | 7 × Ø16mm | 6 × Ø14mm | 6.5 |
| Convex Face | 115 | 143 | 8 | 2 | Spherical + Ballistic | 7 × Ø16mm | 6 × Ø14mm | 6.9 |
| Convex Face | 127 | 143 | 8 | 2 | Spherical + Ballistic | 8 × Ø16mm | 4 × Ø14mm + 3 × Ø13mm | 7.8 |
| Convex Face | 130 | 143 | 8 | 2 | Spherical + Ballistic | 8 × Ø16mm | 4 × Ø14mm + 3 × Ø13mm | 8.0 |
✅ WK40 Shank – Compatible with most standard 4'' class high-pressure DTH hammers
✅ Convex Face Design – Enhances rock-breaking performance and extends bit life
✅ Spherical + Ballistic Buttons – Provide both durability and fast penetration
✅ Efficient Flushing System – Twin air holes keep the borehole clean and cool
✅ Precision Heat Treatment – Strengthens bit body and reduces wear
✅ Balanced Cutting Structure – Suitable for medium to hard rock and abrasive ground
⛏️ Mining and Quarrying – Efficient drilling in granite, basalt, and other hard rocks
💧 Water Well Drilling – Fast, clean borehole formation
🏗️ Construction and Civil Engineering – Foundation, micro-piling, ground reinforcement
🌋 Geothermal Projects – Stable performance in deep thermal boreholes
Packaging: Strong wooden boxes or steel frames
Lead Time: 5–10 business days
MOQ: 2 pieces per size
Shipping: Available by sea, air, or express (DHL, FedEx, UPS)
🏭 15+ Years of DTH drilling tool manufacturing experience
📐 Customization available for face design, button shape, and diameter
🧪 100% quality inspection before shipment
🌐 Exported to 40+ countries
💬 Professional sales and technical support team
Ready to improve your drilling performance with reliable WK40 DTH bits? Contact us for the latest prices and technical assistance.
💼 Company: YKDrill
📧 Email: ykdrill@ykdrill.com
🌐 Website: www.ykdrill.com
