| After-sales Service: | Support |
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| Manufacturing Process: | CNC Milling |
| Surface Treatment: | Polishing |
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About Drill Collar
As an important part of drill string, drill collar can supply the drill bit and increase the rigidity of drill string. Drill collar are manufactured strictly according to API Spec7-1 standard with material of AISI 4145 Mod. We supply slick drill collars, spiral drill collars, etc. The size of drill collar we can provide is from 3.1/8 to 11 inches. We can also provide other drill collars at customers' specific request.
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Product Name:
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Drill Collars ,Spiral Drill Collar,Non-magnetic Drill Collar,Drill Collar and Drill Stem Accessories;
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Size:
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Outer diameter:3 1/8"-11"
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Length:
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30Ft/31Ft/43Ft/R1~R3
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Connection type:
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NC , REG , FH, IF
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Thread:
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NC26, NC31, NC38, NC40, NC46, NC50, 5.1/2FH
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Material:
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Stainless Steel/Alloy steel/4145H/Carbon steel
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Standard:
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API 5DP/API Spec 7-1
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Application:
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Oil and gas well drilling/Oilfield Drilling
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Widely used in oil, gas, HDD and geothermal field.
Zhengzhou Ruizuan Diamond Tools Co., Ltd. is committed to providing tools for customers Grinding, cutting, turning, milling, drilling, reaming. Including Abrasives and Grinding Wheels Diamond/CBN Grinding Wheels and tools PCD/PCBN inserts and tools tungsten carbide inserts and tools and high speed steel tools and knives. Our tools are used in many different fields
Our customers in woodworking, metalworking, automotive, stone, glass, gemstones, industrial ceramics,Oil and gas drilling and construction industries. Our products have performed well in these industries for a long time Long service life, high efficiency and low unit cost.
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