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| Categories | RC Drilling Tools | 
|---|---|
| Brand Name: | JCDRILL | 
| Model Number: | All Models | 
| Certification: | ISO9001,CE | 
| Place of Origin: | China (Mainland) | 
| MOQ: | 5pcs | 
| Price: | Negotiation | 
| Payment Terms: | L/C, T/T, Western Union, D/A, D/P, MoneyGram | 
| Supply Ability: | 1000000pcs/year | 
| Delivery Time: | 3-15 work days | 
| Packaging Details: | Iron shelf | 
| Parts Name: | RC drill bit | 
| Brand: | JCDRILL | 
| Color: | customized | 
| Factory Visit: | Support | 
| Sample Order: | Support | 
| Usage: | Hole drlling | 
| Company Info. | 
| Beijing Jincheng Mining Technology Co., Ltd. | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
Russia best selling oil well use rc drill bit/Reverse circulation bit
1.Based on previous experience of ordinary hammers, combined with the features of reverse circulation hammer, optimized internal structure and ideal energy transfer, thus ensuring the series of hammers drilling with fast, smooth and continuous sampling.
2.The internal structure is very simple with components of high rigidity, thus ensuring long life and easy maintenance of the hammer.
3. The collection tube adopts an integrative design and can be replaced without disassembling the hammer. With carburizing treatment, it has good abrasive resistance.
4. Equipped with bits designed with patent. Simply by replacing the drill bit, the same hammer can drill holes of different sizes ensuring that the sample is not contaminated.
5. In different conditions such as loose soil, hard rock and plenty of water exists, sampling can be done well.

Specification
| Specification | Head Shape | Head Diameter(mm) | Shank Length | Spline | Port Holes | Weight(Kg) | |
| RE004 | RE004-115 | Drop-Center Face | 115 | 271 | 8 | 2 | 11.5 | 
| RE004-121 | Drop-Center Face | 121 | 271 | 8 | 2 | 12.1 | |
| RE004-124 | Drop-Center Face | 124 | 271 | 8 | 2 | 12.3 | |
| RE004-127 | Drop-Center Face | 127 | 271 | 8 | 2 | 12.5 | |
| RE542 | RE542-121 | Drop-Center Face | 121 | 225 | 8 | 2 | 10.7 | 
| RE542-124 | Drop-Center Face | 124 | 225 | 8 | 2 | 11 | |
| RE542-127 | Drop-Center Face | 127 | 225 | 8 | 2 | 11.2 | |
| RE542-133 | Drop-Center Face | 133 | 225 | 8 | 2 | 11.4 | |
| PR52 | PR52-133 | Drop-Center Face | 133 | 282 | 8 | 2 | 16.5 | 
| PR52-136 | Drop-Center Face | 136 | 282 | 8 | 2 | 16.7 | |
| PR52-140 | Drop-Center Face | 140 | 282 | 8 | 2 | 16.9 | |
| PR52-143 | Drop-Center Face | 143 | 282 | 8 | 2 | 17.1 | |
| PR54R | PR54R-136 | Drop-Center Face | 136 | 261 | 8 | 2 | 18.3 | 
| PR54R-140 | Drop-Center Face | 140 | 261 | 8 | 2 | 18.5 | |
| PR54R-143 | Drop-Center Face | 143 | 261 | 8 | 2 | 18.7 | |
| PR54R-146 | Drop-Center Face | 146 | 261 | 8 | 2 | 18.9 | |
| PR54R-165 | Drop-Center Face | 165 | 261 | 8 | 2 | 21 | |
| PR54R-178 | Drop-Center Face | 178 | 261 | 8 | 2 | 22.5 | |
Features
1) Face design: flat, convex, concave
2) Inserts design: spherical, ballistic, parabolic
3) Designed to work with RC hammers
4) Bit diameter: 90mm to 213mm
5) Reliable quality
6) Long service life
7) Smooth flushing effect
Delivery
|   | 
 Retrievable Type RC Reverse Circulation Drill Hammer Bits For Well Drilling
                                                                                    
                        
                        
                        
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