Ql50-146mm Dth Button Bits Hammer Hard Rock Drilling
QL50-146mm Dth Hammer Hard Rock Drilling Button Bit
DTH Bit
DTH bit is also our main product. After mang years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.
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Product: |
DTH Hammer Bits |
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Color: |
Green, Gold, Black or based on customer requirements. |
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Series: |
COP/ SD/ DHD/ IR/ Mission/ QL/ BR/ CIR etc |
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Face: |
Flat Face, Concave Face, Convex Face, DGR face |
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Material: |
High quality carbide and High quality carbon steel |
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Drill rock type |
Granite, Marble, Limestone, Basalt, ect. |
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Project types |
Blast holes,/Quarry/Anchoring/Infrastructure/Geothermal holesWell drilling,ect. |
1.high and low air pressure down-the-hole drill bits
2.Low air pressure holeDia.:65-220mm
3.High air pressure hole Dia.:85-305mm
4.Face type:drop center/concave/convex/double gauge/flat
5.Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.
Technical Parameters Of Bits Assorted
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Head Shape |
Number of head shape |
Head Diameter (mm) |
Part No. |
No. x Button diameter (mm) |
Button angle |
No. of Flushing holes Dia.(mm) |
Weight (Kg) |
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Front Buttons |
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Gauge Buttons |
Flat Face |
Convex Face |
Concave Face |
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1 |
φ140 |
OL50-140CV7 |
7xφ18 |
3xφ14 |
4xφ15 |
/ |
38° |
2xφ20 |
15.1 |
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1 |
2 |
3 |
2 |
φ140 |
QL50-140FF8 |
8xφ16 |
8xφ14 |
/ |
/ |
38° |
2xφ20 |
15.3 |
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3 |
φ146 |
QL50-146FF8 |
8xφ18 |
8xφ15 |
/ |
/ |
38° |
2xφ20 |
15.9 |
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4 |
φ146 |
QL50-146CC8 |
8xφ18 |
4xφ15 |
/ |
3xφ14 |
38° |
2xφ20 |
15.8 |
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5 |
φ152 |
QL50-152FF8 |
8xφ18 |
8xφ15 |
/ |
/ |
38° |
2xφ20 |
16.4 |
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4 |
5 |
6 |
6 |
φ152 |
QL50-152CC8 |
8xφ18 |
4xφ16 |
/ |
4xφ14 |
38° |
2xφ20 |
16.2 |
MIROC® Rock Drilling and Ground Support Tools include:
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.