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Model Number : CD85-270
Place of Origin : China
Brand Name : Super Diamond
Certification : ISO
MOQ : 1
Price : Negotiable
Packaging Details : Fixed plastic mold + carton + wooden box
Delivery Time : 5-8 work days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability : According to order quantity
Material : Alloy Steel,Tungsten Carbide
Processing Type : Forging
Use : Coal/Ore Mining, Well Drilling
Application : Soil Investigation
Advantage : Designed The Hardness
Technology : Precise Heat Treatment Processing
Machine Type : Drilling Tool
Color : Customerized
Type : Drill Bit
Standard : ISO-9001,API
weight : 62kg
Diameter : 10 5/8 inch
DIY Tool Rock DTH Drill Bit Water Well Drilling Rig Pump Driller Borehole Drill Equipment CD85-270
DTH hammers and bits are 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. it has the advantage of high flatness, smooth hole wall, high rigid of drill rod and hammer, independent of high axial thrust, no limit of drilling depth, low cost of devices and easiness to maintain.
Feature
1. Suitable for high pressure drilling rigs
2. Water well drilling
3. Record breaking penetration
4. Exploring Civil Engineering Applications
5. Lowest cost per foot drilled
6. Simple & robust design
7. Exploring Civil Engineering Applications
8. Foot Valve not required in the bit
9. Longer parts life
10. Maximizes efficiency
11. Develops greater power for any compressor capacities
| Diameter | No ×Button diameter , mm | Button angle° | Flushing holes | Weight(Kg) | Part No | ||
| mm | inch | Gauge Buttons | Front Buttons | ||||
| 200 | 7 7/8 | 10×φ18 | 8×φ18+6×φ16 | 38 | 2×φ30 | 46 | CD85-200 | 
| 203 | 8 | 10×φ18 | 8×φ18+6×φ16 | 38 | 2×φ30 | 47 | CD85-203 | 
| 216 | 8 1/2 | 10×φ18 | 8×φ18+6×φ16 | 38 | 2×φ30 | 53 | CD85-216 | 
| 219 | 8 5/8 | 10×φ18 | 8×φ18+6×φ16 | 38 | 2×φ30 | 54 | CD85-219 | 
| 222 | 8 3/4 | 10×φ18 | 8×φ18+6×φ16 | 38 | 2×φ30 | 55 | CD85-222 | 
| 225 | 8 7/8 | 10×φ18 | 8×φ18+6×φ16 | 38 | 2×φ30 | 56 | CD85-225 | 
| 229 | 9 | 10×φ18 | 8×φ18+7×φ16 | 38 | 2×φ30 | 57 | CD85-229 | 
| 235 | 9 1/4 | 12×φ18 | 20×φ16 | 38 | 2×φ30 | 58 | CD85-235 | 
| 241 | 9 1/2 | 12×φ18 | 20×φ16 | 38 | 2×φ30 | 58 | CD85-241 | 
| 254 | 10 | 12×φ19 | 8×φ18+18×φ16 | 38 | 2×φ30 | 61 | CD85-254 | 
| 270 | 10 5/8 | 12×φ19 | 8×φ18+19×φ16 | 38 | 2×φ30 | 62 | CD85-270 | 
| 280 | 11 | 12×φ19 | 9×φ18+21×φ16 | 38 | 3×φ26 | 67 | CD85-280 | 
Mainly used for Quarrying,Ore Mining,Coal Mining, soft, medium hard, and hard rock,blast hole drilling and water well drilling project,Marble quarry or well drilling and other construction projects,etc.
Bit face shape selection:
 1. Drop Center Bit
 For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
 2. Concave Face
 The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
 3. Convex Face
 For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
 4. Double Gauge Face
 This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
 5. Flat Face Bit
 This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

| Caibide BUtton Shapge |  | Domed / Spherical Button Domed / Spherical Buttons are usually used as gauge buttons of DTH Bits, suitable for very abrasive and very hard formations. | 
|  | Parabolic / Semi - Ballistic Buttons Parabolic Buttons are usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formations. | |
|  | Ballistic Button Ballistic Buttons are usually used as front buttons of DTH BIts, suitable for medium abrasive and medium hard formations. They can also be used as gauge buttons if the rock is soft. | |
|  | Sharp Button Sharp BUttons are usually used as front buttons of DTH bits for soft formations where fast penetration rates are possible and button breakage is minimal. | |
|  | Flat Button Flat buttons are usually used as protection buttons to reduce wear on rubbing surfaces of DTH bits. | 

FAQ
1.The Quality of Drill bit?
We have many series of rock bits,quality grades are different,and prices are different.We believe,the proper tools with higher cost-performance isthe most impormant.
3.How to send inquiry?
It is better send us detailed specificaltions of products,it is better attaching some photos for better understanding.If you are not experienced on drilling fields,for example,many customers don't know IADC code,please feel free,jusst tell us the applications like oil/gas/geothermal/HDD/ware/mining,depth of well,average hardness of rocks,then we will advise suggestions and solutions.
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