490mm IADC 447 API 7-1 Factory Outlet Milled Tooth Mining Rock Well Drilling Bit 19-1/4 Inch Steel Tooth Tricone Roller Bit Ruishi Brand Oilfield Drilling Bits

2025-04-13 introduction 3980

Model NO.:

19-1/4inch

Customized:

Customized

Standard:

API

Length:

Taper-length

Type:

Center Drill Bit

Material:

High Carbon Steel

Usage:

Well Drilling

Nozzie Qty:

Bearing Type:

Plain Bearing

Seal:

Rubber

API Connection(Reg)Pin:

7-5/8" Reg

Weight on Bit(kN/mm):

0.5-1.05

Rotary Speed(Rpm):

130-40

Trademark:

Ruishi

Transport Package:

Plywood Box and Ad Required

Specification:

19-1/4 inch

Origin:

China, Cangzhou

HS Code:

820719

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