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6" (152.4mm) IADC221 Milled Tooth Tricone Drill Bits with One Central Jet Hole for Well Drilling

2025-04-09 4220IP Unknown

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Product Specifications

Model NO.:

221

Customized:

Customized

Standard:

API

Length:

Taper-length

Type:

Center Drill Bit

Material:

Cobalt Steel Alloys

Usage:

Well Drilling

Seal:

Rubber Seal, Metal Seal

API:

API 7-1

Tooth:

Steel Tooth

Color:

Gold, Blue, Black and Customized

IADC Code:

221

Condition:

New

Trademark:

Ruishi

Transport Package:

Ply Wood Box

Specification:

8 1/2" 12 1/4" 17 1/2"

Origin:

China, Cangzhou

HS Code:

820719

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