DIY Tool Rock DTH Drill Bit Water Well Drilling Rig Pump Driller Borehole Drill Equipment CD85-270
DTH bits are paired with their corresponding hammers (by drilling hole diameter and spline configuration). Customers can customize their DTH bits in various ways, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.
| 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 |
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
Advantage:
1. Advanced technology
2, High grade steel as material
3. Quik delivery
4. Large quantity are available
Application
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
Q1: Are you trading company or manufacturer ?
A: We are manufacturer (factory).
Q2: How long is your delivery time?
A: Generally it is 5-15 working days if the goods are in stock. Or it is 20-30 working days if the goods are not in stock, it is according to the quantity.
Q3. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q4. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q5: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
About US
Our company has passed and strictly implemented the ISO9001, 2008 quality management system, has independent import and export rights, obtained a number of product invention patents, won the Alibaba special contribution award, Hunan Network Chamber of Commerce vice president unit, A, hardware tools industry top ten excellent network operators, 315AAA quality service integrity units and other honors.
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