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The WK50 Shank DTH Drill Bits by YKDrill are designed for high air pressure drilling in medium to hard rock formations. With a durable WK50 shank structure, advanced button configurations, and various face designs (Convex, Flat, and Concave), these bits offer excellent penetration, longer service life, and outstanding flushing performance.
Available in 140mm to 178mm, the WK50 series is ideal for mining, water well drilling, foundation piling, and geothermal projects.
| Head Shape | Head Diameter (mm) | Shank Length (mm) | Spline | Port Holes | Button Type (Optional) | Gauge Buttons | Front Buttons | Weight (Kg) |
|---|---|---|---|---|---|---|---|---|
| Convex Face | 140 | 170 | 8 | 2 | Spherical + Ballistic | 7 × Ø18mm | 4 × Ø15mm + 3 × Ø14mm | 12.6 |
| Flat Face | 146 | 170 | 8 | 2 | Domed | 8 × Ø18mm | 8 × Ø14mm | 13.3 |
| Flat Face | 152 | 170 | 8 | 2 | Spherical + Ballistic | 8 × Ø18mm | 8 × Ø14mm | 13.8 |
| Flat Face | 165 | 170 | 8 | 2 | Spherical + Ballistic | 8 × Ø18mm | 9 × Ø14mm | 15.8 |
| Concave Face | 178 | 170 | 8 | 2 | Domed | 8 × Ø18mm | 6 × Ø16mm + 5 × Ø14mm | 17.2 |
✅ WK50 Shank – Compatible with most 5'' class high-pressure DTH hammers
✅ Various Face Options – Convex for fast penetration, Flat for stability, Concave for control
✅ Premium Button Layout – Combination of domed and ballistic tungsten carbide buttons for both wear resistance and cutting efficiency
✅ Robust Flushing Design – Dual air holes keep debris out and reduce overheating
✅ Optimized Body Weight – Balanced for energy transfer and durability in deep drilling conditions
✅ Heat Treated Alloy Steel – Ensures strength and longer bit life under tough rock conditions
⛏️ Mining and Quarrying – Blast holes and production drilling
💧 Water Well Drilling – Medium to large borehole drilling
🏗️ Construction & Foundation – Piling, anchoring, ground reinforcement
🌡️ Geothermal Energy – Deep vertical boreholes in hard strata
Packaging: Standard wooden case or steel frame
Lead Time: 5–10 working days after payment
MOQ: 2 pieces
Shipping: By sea, air, or express (DHL, FedEx, UPS)
🏭 15+ years of experience in DTH drilling tools
📐 OEM/ODM customization available for size, buttons, and flushing holes
🧪 100% Quality-inspected before shipment
🌐 Exported to 40+ countries
💬 Fast response technical and after-sales support
Want to enhance your drilling performance with WK50 DTH Bits? Get in touch today!
💼 Company: YKDrill
📧 Email: ykdrill@ykdrill.com
🌐 Website: www.ykdrill.com
