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Our customer used your diamond core bits, very satisfied your quality.

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Our customer considers your last DTH button bits, COP 32 hammer was of a good quality. We want to buy again.

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Company News
china latest news about DTH casing advancement systems

DTH casing advancement systems

[2016-10-18 17:56:36]
Our Roschen Tubex system When simultaneously drilling and casing through loose overburden materials our Tubex system will give you a great result. Tubex is a cost efficient system leaving less material behind in the hole. Roschen® casing advancement systems are designed to work in unison, with other ... Read More
china latest news about Shank Adapters Catalogues

Shank Adapters Catalogues

[2016-10-18 11:12:32]
Shank Adapter Catalogues /photo/explorationcoredrilling/editor/20151214120526_48694.pdf Read More
china latest news about API casing Sizes

API casing Sizes

[2017-11-03 16:07:09]
Dimensions Bit Size and Diameter Clearance Size OD Weight Per Foot Nominal Wall Nominal ID Coupling OD Drift Nominal Bit Size Clearance From Drift Dia. Inches Pounds Inches Inches Decimal Inches 10 3/4 32.75 0.276 10.192 11.75 10.036 9 7/8 9.875 0.161 40.5 0.35 10.05 11.75 9.894 9 7/8 9.875 0.019 45... Read More
china latest news about API Casing Dimensions & Bit Clearance Data

API Casing Dimensions & Bit Clearance Data

[2017-11-03 15:45:43]
API Casing Dimensions & Bit Clearance Data Dimensions Bit Size and Diameter Clearance Size OD Weight Per Foot Nominal Wall Nominal ID Coupling OD Drift Nominal Bit Size Clearance From Drift Dia. Inches Pounds Inches Inches Decimal Inches 4 1/2 9.5 0.205 4.09 5 3.965 3 7/8 3.875 0.09 11.6 0.25 4 5 3... Read More
china latest news about API Casing TABLE SPECIFICATION

API Casing TABLE SPECIFICATION

[2017-11-03 15:52:58]
Dimensions Bit Size and Diameter Clearance Size OD Weight Per Foot Nominal Wall Nominal ID Coupling OD Drift Nominal Bit Size Clearance From Drift Dia. Inches Pounds Inches Inches Decimal Inches 7 17 0.231 6.538 7.656 6.413 6 3/8 6.375 0.038 20 0.272 6.456 7.656 6.331 6 1/4 6.25 0.081 23 0.317 6.366 ... Read More
china latest news about New COP RC45 hammer combines technical performance with lighter weight

New COP RC45 hammer combines technical performance with lighter weight

[2016-12-02 12:33:00]
New COP RC45 hammer combines technical performance with lighter weight Fast and accurate grade control is the key to an effective mineral extraction process and ultimately to mining productivity and profitability. That’s why Roschen Secoroc says it has opted to extend its RC hammer range with the ... Read More
china latest news about Roschen announces new DTH hammers, open-standard driver chucks and the toughest range of button bits ever

Roschen announces new DTH hammers, open-standard driver chucks and the toughest range of button bits ever

[2016-10-18 12:06:48]
Sandvik announces new DTH hammers, open-standard driver chucks and the toughest range of button bits ever Roschen announces new DTH hammers, which can instead of Sandvik, open-standard driver chucks and the toughest range of button bits ever Three new families of DTH hammers and a wide new range of ... Read More
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