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| Categories | DTH Drill Bits | 
|---|---|
| Brand Name: | SOLLROC | 
| Model Number: | 190mm | 
| Certification: | SGS | 
| Place of Origin: | China | 
| MOQ: | 1 piece | 
| Price: | negotiable | 
| Payment Terms: | T/T, | 
| Supply Ability: | 10000 pieces/month | 
| Delivery Time: | 18 working days | 
| Packaging Details: | Cartons + ply wood case (no plastic) | 
| Application: | Quarrying, construction, civil engineering, mining, | 
| Usage: | mining, water well drilling, geothermal drilling | 
| Product name: | 190mm DTH Bit | 
| Rock formation: | Granite, limestone, quartz, etc | 
| shank: | DHD,Cop,QL,Mission,SD | 
| Advantage: | Hign Abrasion Resistance | 
| Color: | Black or as request | 
| Size: | 7 1/2" | 
| Bit diameter: | 190mm | 
| Rock hardness: | Granite, limestone, quartz, etc | 
| Machine type: | Drilling Tool,Drilling Equipment,Downhole Tools,Mining machine parts | 
| Use: | Well Drilling,Ore Mining,Coal Mining,Coal/Ore Mining,quarry | 
| Company Info. | 
| Changsha Sollroc Engineering Equipments Co., Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
7 1/2'' 190mm Mining Rock Drill Bit With Thread 3 1/2'' API REG For DTH Drilling
Product description
Sollroc's DTH button bit designs are well known and extensively used around the world. Whatever conditions you're dealing with, our drill bits make the job easier. They are fitted with Sollroc's proprietary cemented carbide buttons, which are designed to drill further. The drill bit bodies are made from precision hardened nickel molybdenum steel, with a compound curve shape for faster and smoother cutting and easier removal of cuttings.
190mm DTH Drill Bit overview
| For 6" hammer DTH bits shank | Bit Dia. (mm) | No. Air Holes | Gauge Buttons | Front Buttons | Weight (Kg) | Part No. | |
| mm | inch | ||||||
| DHD360/COP64 | 152 | 6" | 2 | 8×φ16 | 8×φ16 | 26.0 | DHD360-152 | 
| 165 | 6 1/2" | 2 | 8×φ18 | 8×φ16 | 28.0 | DHD360-165 | |
| 178 | 7" | 2 | 8×φ18 | 8×φ18 | 30.5 | DHD360-178 | |
| 190 | 7 1/2" | 3 | 9×φ18 | 9×φ16 | 34.0 | DHD360-190 | |
| 203 | 8" | 3 | 9×φ18 | 9×φ18 | 36.0 | DHD360-203 | |
| SD6 | 152 | 6" | 2 | 8×φ16 | 8×φ16 | 26.0 | SD6-152 | 
| 165 | 6 1/2" | 2 | 8×φ18 | 8×φ16 | 28.0 | SD6-165 | |
| 178 | 7" | 2 | 8×φ18 | 8×φ18 | 31.0 | SD6-178 | |
| 190 | 7 1/2" | 3 | 9×φ18 | 9×φ16 | 34.0 | SD6-190 | |
| 203 | 8" | 3 | 9×φ18 | 9×φ18 | 36.0 | SD6-203 | |
| QL60 | 152 | 6" | 2 | 8×φ16 | 8×φ16 | 25.0 | QL60-152 | 
| 165 | 6 1/2" | 2 | 8×φ18 | 8×φ16 | 27.0 | QL60-165 | |
| 178 | 7" | 2 | 8×φ18 | 8×φ18 | 28.5 | QL60-178 | |
| 190 | 7 1/2" | 3 | 9×φ18 | 9×φ16 | 31.0 | QL60-190 | |
| 203 | 8" | 3 | 9×φ18 | 9×φ18 | 33.0 | QL60-203 | |
| Mission60 | 152 | 6" | 2 | 8×φ16 | 8×φ16 | 22.0 | M60-152 | 
| 165 | 6 1/2" | 2 | 8×φ18 | 8×φ16 | 23.0 | M60-165 | |
| 178 | 7" | 2 | 8×φ18 | 8×φ18 | 24.0 | M60-178 | |
| 190 | 7 1/2" | 3 | 9×φ18 | 9×φ16 | 25.0 | M60-190 | |
| 203 | 8" | 3 | 9×φ18 | 9×φ18 | 28.0 | M60-203 | |
Product Advantages:
1. The service life of the DTH bit is increased by more than 6
times;
2. The overall tool cost of the operation decreased by more than
30%;
3. The production efficiency of the operation is increased by more
than 20%;
4. It can better maintain the quality of the well hole;
5. Make the target application that was impossible to complete once
become possible;
6. Reduce the frequency of tool replacement and reduce the labor
intensity of workers.
Design Features
1. Computer analysis and laboratory trials have been used to
optimize the number of buttons as well as their size and
positioning throughout the bit front.
2. Carbide has been carefully designed to minimize the risk of
button loss and button failure
3. The design of the bit body and the frontal sludge grooves
provides uniform flushing with reduces steel wash on both bit and
the hammer.
4. Material processes and multiple heat treatment have focussed on
achieving maximum resistance to fatigue failure.
5. Special bit designs such as Concave and Convex/CB are available
on request.
Product application
At present, DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering.
DTH is one of the most efficient ways of drilling rock, using a rapid hammer action to break the rock into sizeable chips which are then evacuated from the bore hole by the air exhausted from the DTH Hammer. The technique provides fast drilling of accurately aligned, straight and clean holes in most ground conditions.

Company informaiton
At sollroc, customer satisfaction is our top priority. Our sales team takes a proactive approach in meeting customers’ needs. We take the time to get to know you and learn about your operations so we can better assist you. We strive to meet customers’ needs by supplying the tools and equipment you need when you need them, providing product support, and following through with excellent customer service every step of the way.
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