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8 1/2" Rock Cutter Roller Cone Single Bit
US$250.00-300.00
1 Piece
Sample price:US$250.00/piece.Request sample

Product profile

Customization

Available

Customized

Customized

Standard

AISI

Model NO.

8.5

Type

Center Drill Bit

Material

High Carbon Steel

Usage

Well Drilling

Machine Type

Drilling Tool

Processing Type

Forging

Advantage

High-Efficiency ,Wear Resistant

Bearing Type

Journal /Roller Bearing Bit

Transport Package

Wooden Case

Specification

8.5"

Trademark

LONGYUE

Origin

Hebei, China

HS Code

8207199000

Production Capacity

200 Pieces/Week

Key features

High-Efficiency & Wear Resistant: Forged high carbon steel with tungsten carbide inserts for superior durability.
Advanced Bearing System: Metal sealed and rubber sealed bearings with friction-reducing alloy for long life.
Customizable Nozzles: Center nozzle can be customized to meet specific drilling requirements.
Wide Size Range: Available in 7 1/2'', 8 1/2'', 9 7/8'', and 12 1/4'' bit sizes.
Multiple IADC Codes: Supports IADC codes 117, 127, 126, 217, 417, 437, 517, 537, 617, 627, 637, 737.
Fast Delivery: Regular models in stock with prompt delivery; mass production within 15 workdays.
OEM/ODM Service: Supports customized machine types, processing types, and bearing configurations.
Gauge Protection: More carbide inserts on the shirttail increase gauge holding capability and bearing life.

Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-08-01 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤4.12h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryHejian Longyue Drill Bit Manufacture Co., Ltd. is a manufacturing factory located in Hejian City, Cangzhou, Hebei, China. Established in 2016, it operates over 10 production lines with an annual output between US$10 million and US$50 million. The company exports 51% to 70% of its products and has self-managed import-export rights. It specializes in producing drill bits and other related tools, serving both domestic and international markets.
Supplier typeThe supplier is a manufacturing factory operating as a limited company in Hebei, China, established in 2016.
After-Sales capabilityThe supplier emphasizes prompt and sincere responses to inquiries, indicating a focus on customer service.
R&D capabilityThe company has a total of 5 R&D engineers and is capable of designing drill bits, showing some innovation capability.
Production capacityWith over 10 production lines and a plant area of 10,000 m², the supplier shows strong production capacity.
Customization capabilityThe supplier can design PDC bits according to customer requests, indicating customization capability.

Product Q&A

Q:How to get an exact quotation?
A:
Please send detailed information including bit type (Tricone/PDC/Hole opener/Roller cutters), diameter, IADC code, blade quantity, cutter size, pilot hole size, rock hardness, thread connection, drilling depth, rig capacity, application, Incoterm (FOB/CIF/CFR), transport method, and destination port. Photos are also helpful.
Q:What are the lead time and payment terms?
A:
Regular models are available in stock for prompt delivery. Mass production lead time is within 15 workdays. We accept L/C, T/T, D/P, and PayPal.
Q:What is the material and construction of the bit?
A:
The bit is made of high carbon steel with tungsten carbide inserts and inlaid friction-reducing alloy. It features metal sealed and rubber sealed bearings with an advanced grease pressure control system.
Q:What are the recommended drilling parameters for IADC 637?
A:
For IADC 637, use WOB of 0.5-1.2 kn/mm and RPM of 80-40. It is suitable for hard to very hard formations with high compressive strength, such as hard limestone, dolomite, and marble.
Q:Can the nozzle be customized?
A:
Yes, the center nozzle can be customized to suit specific drilling needs.

Send Inquiry

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