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Guizhou Viton Industrial Co.,Ltd
 
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Drill Collar,Drill Collars,Drilling String

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Title: Drill Collar,Drill Collars,Drilling String 
Unit price: Negotiable
MOQ: Negotiable
Quantity: Negotiable
Delivery date: Since the payment date Days delivery

Contact: Tom Woo (Mr.)    
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Drill Collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity

Drill Collar Number O.D. I.D. Length
(mm) Bevel Diameter Ref bend g Strength ratio
(mm) (in) (mm) (in)
NC23-31 79.4 3 1/8 31.8 1 1/2 9150 76.2 2.57:1
NC26-35(2 3/8 IF) 88.9 3 1/2 38.1 1 1/2 9150 82.9 2.42:1
NC31-41(2 7/8 IF) 104.8 4 1/8 50.8 2 9150 100.4 2.43:1
NC35-47 120.6 4 3/4 50.8 2 9150 114.7 2.58:1
NC38-50(3 1/2 IF) 127.0 5 57.2 2 1/4 9150 121.0 2.38:1

Drill Collar,Drill Collars,Drilling String
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