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| Categories | Reverse Circulation Drilling Tools |
|---|---|
| Brand Name: | MIROC |
| Model Number: | Overburden Drill Bit |
| Certification: | ISO9001:2015 |
| Place of Origin: | Shangdong,China |
| MOQ: | 5PCS |
| Price: | Negotiation |
| Payment Terms: | L/C, D/P, T/T, Western Union, MoneyGram, D/A |
| Supply Ability: | 20000PCS Per Month |
| Delivery Time: | 10-25Days |
| Packaging Details: | Wooden Case/Plate |
| Product Name: | Overburden drilling system |
| Application: | Construction works , Energy & Mining |
| Processing Type: | Forging |
| Min.casing ID: | 195mm |
| Max.casing ODr:: | 219mm |
| Shank: | DHD360 |
| Reaming Dia: | 230-250mm |
| Face: | Drop Center, Concave, Convex, Flat |
| Material: | Carbon Steel |
| Color: | Green, Black And Demaned By Customer |
195mm 219mm Symmetrix Overburden Drilling Systems Steel Casing Tube Odex DTH Bit
Product Description
Symmetric is a system comprised of an ingeniously simple concentric
method of drilling through overburden with casing. Symmetric can
drill straight holes at any angle (including horizontal) and to
depths beyond 100 meters. Working together as one efficient drill
bit, the components are made up of:
A pilot bit with large internal flushing holes and external
flushing grooves.
Symmetrical ring bit (reamer) with internal bayonet coupling
Casing shoe for driving of casing.
The below size of Symmetric systems which are available, and the
special design is upon customer’s requirement:
Symmetric 114, Symmetric 127, Symmetric 140, Symmetric 146,
Symmetric 168,
Symmetric 178, Symmetric 195, Symmetric 219, Symmetric 243,
Symmetric 273.
Specification:
| Casing outer dia.(mm) | Casing thickness(mm) | Ring bit dia.(mm) | Max.dia. of normal bit(mm) | Suitable hammer (inches) | Retrievable |
| 114 | 10 | 126 | 84 | 3.5 | No |
| 122 | Yes | ||||
| 127 | 10 | 142 | 93 | 3.5 | No |
| 135 | Yes | ||||
| 140 | 10 | 161 | 97 | 4 | No |
| 148 | Yes | ||||
| 146 | 10 | 165 | 110 | 4 | No |
| 154 | Yes | ||||
| 168 | 12 | 188 | 127 | 5 | No |
| 180 | Yes | ||||
| 178 | 12.7 | 196 | 131 | 5 | No |
| 185 | Yes | ||||
| 194 | 12.7 | 214 | 145 | 6 | No |
| 202 | Yes | ||||
| 219 | 12.7 | 243 | 170 | 6 | No |
| 228 | Yes |
Contact Person: Tina Yan
Mobile/Whatsapp/Wechat: +86-15035768372
Skype: myqueen323
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