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 Video,Demo, How It Works & Features

Name: 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
Uploaded: 2026-06-02T19:46:01+08:00
Description: Watch the 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 video demo to see how it works, key features, and real-use scenarios. A helpful video guide before you buy.

2025-04-09 4110

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Product Specifications

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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