8 inch DTH Drill Bits High Pressure 290mm Down The Hole drill bit
for DTH Hammer
Product Description
The DTH bit is the tool cutting rock. Miroc DTH bit for mining is
made of superior quality alloy steel .Besides, all our DTH bit is
using best quality carbides. In addition art manufacturing
technology makes our DTH bit for mining is with higher and more
reliable quality.
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
CIR,DHD, Mission, COP, IR, SD, etc.
Our DTH hammer and bits are compatible with CIR, DHD,
QL,SD,Mission, etc. series of Atlas and etc. They are with high
efficiency, low failure rate and long service life. They are with
high efficiency, low failure rate and long service life, which can
realize efficient and economical drilling even for all kinds of
high hardness, high abrasive rocks and other harsh conditions.
Bit designs and rock types
Products Parameters
Specification of other DTH Bits:
| Drill Bit | Bit Dia.(mm) | NO.Air
Holes | Gauge
Buttons | Front
Buttons | Weight(Kg) | Part No. |
HD85
(DHD380,Cop84) | 195 | 3 | 9×φ18 | 9×φ18 | 34.0 | HD85—195 |
| 203 | 2 | 10×φ18 | 10×φ18 | 36.0 | HD85—203 |
| 216 | 3 | 12×φ18 | 12×φ18 | 45.0 | HD85—216 |
| 254 | 3 | 12×φ18 | 20×φ18 | 58.0 | HD85—254 |
| 305 | 4 | 12×φ18 | 30×φ18 | 75.0 | HD85—305 |
| SD8 | 195 | 3 | 9×φ18 | 9×φ18 | 33.0 | SD8—195 |
| 203 | 3 | 10×φ18 | 10×φ18 | 37.0 | SD8—203 |
| 216 | 4 | 12×φ18 | 12×φ18 | 42.0 | SD8—216 |
| 254 | 4 | 12×φ18 | 20×φ18 | 53.0 | SD8—254 |
| 305 | 4 | 12×φ18 | 30×φ18 | 80.0 | SD8—305 |
| QL80 | 195 | 3 | 9×φ18 | 9×φ18 | 33.0 | QL80—195 |
| 203 | 3 | 10×φ18 | 10×φ18 | 37.5 | QL80—203 |
| 216 | 4 | 12×φ18 | 12×φ18 | 42.0 | QL80—216 |
| 254 | 4 | 12×φ18 | 20×φ18 | 54.0 | QL80—254 |
| 305 | 4 | 12×φ18 | 30×φ18 | 82.0 | QL80—305 |
| Mission80 | 195 | 3 | 9×φ18 | 9×φ18 | — | M80—195 |
| 203 | 3 | 10×φ18 | 10×φ18 | — | M80—203 |
| 216 | 4 | 12×φ18 | 12×φ18 | — | M80—216 |
| 254 | 4 | 12×φ18 | 20×φ18 | — | M80—254 |
| 305 | 4 | 12×φ18 | 30×φ18 | — | M80—305 |
How to order
Shank Type + Diameter + Face Design + Button Configuration
Company Information
The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd. is the result of years of advanced engineering, precision
manufacturing, and dedication to the use of high-quality materials. Rock Drilling Tools are used by many drilling professionals related
to mining, construction, tunneling, and quarrying projects around
the globe.
MIROC® Rock Drilling and Ground Support Tools include:
1. Low pressure DTH Hammer
2. Medium pressure DTH Hammer
3. High pressure DTH Hammer
4. DTH Drill bit
5. DTH Drill pipe
