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| Place of Origin: | China |
| Brand Name: | MIROC |
| Certification: | ISO |
| Model Number: | BR2 |
| Minimum Order Quantity: | 1 |
|---|---|
| Price: | negotiation |
| Packaging Details: | wooden box or carbon box |
| Delivery Time: | 15-20days |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability: | 2000pcs a month |
| Material: | Alloy Steel | Type: | DTH Bit |
|---|---|---|---|
| Color: | Required | Application: | Water Well Drilling |
| Advantage: | High-efficiency | Quality: | 95% Quality Similarity With World Top Class Brands |
| High Light: | dhd76 dth drill bits,alloy steel dth drill bits,dhd 76 down hole hammer drill bits |
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BR2 76mm Hammer Bits Water Hole Deep Drilling DTH Drill Bits
Description
DTH bit is the tool cutting rocks, and subject to severe stress from the striking piston as well as from the abrasive cuttings passing the bit at high velocity. When selecting the right bit for optimum performance you have to balance penetration against bit life. On occasion you can successfully sacrifice bit life for penetration, remember the rule of thumb that states that a 10% increase in penetration covers at least a 20% loss in bit life.
The main features are as following:
1. Simple design of the piston. Long life span.
2. More efficient energy transfer, faster drilling speed, low air consumption and lower oil consumption.
3. Fewer internal parts, simple structure, long life span, less failure and easier to maintain because all the parts are heat treated.
4. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multiple steps thread.
Specification
| BR2 DTH Bit | No. Button Diameter | ||||||
| Head Diameter mm | Gauge Buttons | Front Buttons | button angle |
number of flushing holes |
weight KG |
||
| Flat face | convex face | concave face | |||||
| φ76 | 6*φ13 | 5*φ10 | / | / | 38° | 2*φ12 | 2.3 |
| φ76 | 6*φ13 | 2*φ10 | 2*φ11 | / | 38° | 2*φ12 | 2.3 |
| φ80 | 6*φ13 | 2*φ10 | 3*φ11 | / | 38° | 2*φ12 | 2.4 |
| φ90 | 6*φ13 | 2*φ11 | 4*φ11 | / | 38° | 2*φ12 | 2.6 |
| φ90 | 6*φ13 | 6*φ10 | / | / | 38° | 2*φ12 | 2.6 |
| φ95 | 8*φ12 | 4*φ12 | / | 2*φ12 | 38° | 2*φ12 | 2.8 |
| RS DTH Bit | |||||
| Diameter in mm | NO. Air Holes | Gauge PDC Buttons | Front PDC Buttons | Approx. weight | Shank style |
| 85 | 2 | 6*φ13 | 4*φ12 | 5.0 kgs | COP34/COP32/DHD3.5 |
| 90 | 2 | 6*φ14 | 4*φ12 | 5.8 kgs | BR3/ |
| 95 | 2 | 6*φ14 | 5*φ12 | 5.9 kgs | |
| 100 | 2 | 6*φ14 | 6*φ12 | 6.1 kgs | |
| 105 | 2 | 8*φ13 | 6*φ12 | 6.3 kgs | |
| 105 | 2 | 6*φ14 | 5*φ13 | 8.6 kgs | COP44/DHD340 |
| 110 | 2 | 7*φ14 | 6*φ13 | 8.8 kgs | M40/SD4/QL40 |
| 115 | 2 | 7*φ14 | 7*φ13 | 9.0 kgs | |
| 120 | 2 | 8*φ14 | 7*φ13 | 9.5 kgs | |
| 127 | 2 | 8*φ14 | 7*φ14 | 9.9 kgs | |
| 133 | 2 | 7*φ16 | 7*φ14 | 15.0 kgs | COP54/DHD350 |
| 140 | 2 | 7*φ19 | 7*φ14 | 16.5 kgs | M50/SD5/QL50 |
| 146 | 2 | 8*φ19 | 7*φ14 | 17.0 kgs | |
| 152 | 2 | 8*φ19 | 8*φ14 | 17.8 kgs | |
| 165 | 2 | 8*φ19 | 8*φ16 | 18.5 kgs | |
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988
