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spiral drill collar
spiral drill collar
Supplier Info
[China Supplier]
Contact Person : Ms. Yang Lisa
Tel : 0086-0533-3983222
Fax : 0086-0533-3985111
Product Detail
It is used to reduce contact area with hole in order to avoid efficiently bit sticking from different pressure.

Spiral drill collars are one kind of the products of our company and are manufactured strictly according to API Spec 7 and Standard SY/T5144-1997.It is used to reduce contact area with hole in order to avoid efficiently bit sticking from different pressure.

spiral drill collar

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