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Double Casing Drilling Tools
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Double Casing Drilling Tools
Double Casing Drilling Tools
Inner opener bits | Crown opener bits | External pipe | Internal pipe | Internal/External pipe adapter | Small/Big adapter | |
118 Overburden Drilling | ||||||
(mm) Diameter | ø 127 | ø 82 | ø118 | Ø76(ø73) | Ø75 / ø118 | Ø75 /ø118 |
(mm) Length | - | - | 2000 | 2000 | 250 / 300 | 350 |
Thread | R104-2/3 | R56 | R104-2/3 | R56 | R56 / R104-2/3 | |
133 Overburden Drilling | ||||||
(mm) Diameter | ø 142 | ø 102 | ø133 | Ø76(ø73) | Ø75 / ø133 | Ø75 /ø133 |
(mm) Length | - | - | 2000 | 2000 | 250 / 300 | 350 |
Thread | R122-2/3 | R56 | R122-2/3 | R56 | R56 / R122-2/3 | |
146 Overburden Drilling | ||||||
(mm) Diameter | ø 156 | ø 115 | ø146 | Ø76(ø73) | Ø75 / ø146 | Ø75 /ø146 |
(mm) Length | - | - | 2000 | 2000 | 250 / 300 | 350 |
Thread | R122-2/3 | R56 | R122-2/3 | R56 | R56 / R122-2/3 | |
165 Overburden Drilling | ||||||
(mm) Diameter | ø 175 | Ø135 | ø165 | Ø89 | Ø89 / ø165 | Ø89/ø165 |
(mm) Length | - | - | 2000 | 2000 | 250 / 300 | 350 |
Thread | R152-2/3 | R78 | R152-2/3 | R78 | R78 / R152-2/3 | |
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Zhuzhou Zhongge Cemented Carbide Co., Ltd.
ADDRESS：No. 1099, the Pearl River North Road, Tianyuan District, Zhuzhou, Hunan
Phone：0086-13873336879
Tel：0086-731-22588953
Email：info@zzgloborx.com
Whatsapp/Wechat：0086+13873336879
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Zhuzhou Zhongge Cemented Carbide Co., Ltd.
AddNo. 1099, the Pearl River North Road, Tianyuan District, Zhuzhou, Hunan
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