Do you offer OEM and ODM services?

Yes, we offer both OEM and ODM services for drilling tools.

What are the main markets for your products?

Our main markets include North America, South America, Europe, Southeast Asia, Middle East, Africa, East Asia, and Australia.

Factory Directly Supply 8 1-2 Inch Oilfield Drilling Rock/Roller Cone Cutter Bit

Name: Factory Directly Supply 8 1-2 Inch Oilfield Drilling Rock/Roller Cone Cutter Bit
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2097682655

Hebei, ChinaHejian Longyue Drill Bit Manufacture Co., Ltd.

US$400.00-800.00

1 Piece

Sample price:US$500.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

AISI

Model NO.

8 1/2''

Length

Taper-length

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

Pin Connection

4 1/2'' Regular

Transport Package

Wooden Case

Specification

8 1/2''

Trademark

LONGYUE

Origin

Hebei, China

HS Code

8207199000

Production Capacity

200 Pieces/Week

Key features

High-Efficiency Wear Resistance: Features tungsten carbide inserts and wear-resistant alloy hardfacing for extended durability.

Customizable Center Nozzle: The center nozzle design can be customized to meet specific drilling requirements.

Wide Range of IADC Codes: Available in multiple IADC codes (117-737) for various formation types from soft to very hard.

Advanced Bearing System: Equipped with metal sealed and rubber sealed bearings for reliable performance.

Gauge Protection Design: Shirttail design with extra carbide inserts increases gauge holding capability and bearing life.

OEM and ODM Services: Full OEM and ODM services available for custom drilling tool manufacturing.

Fast Inland Transportation: Factory is near Beijing and Tianjin ports with one-day transport for fast delivery.

Regular Models in Stock: Regular models are kept in stock to ensure prompt delivery for immediate needs.

Company profile

Hejian Longyue Drill Bit Manufacture Co., Ltd.

Hebei, China

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: ≤5.90h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryHejian Longyue Drill Bit Manufacture Co., Ltd. is a China-based manufacturing factory in Hejian, Cangzhou, Hebei, established in 2016, with 67 employees and a 10,000 m² plant. It produces drilling-related equipment, operates more than 10 production lines, and has 6–10 quality-control staff. The supplier states that it can design HY PDC bits according to customer requirements, indicating customization capability. It has five years of R&D engineer experience, exports 51%–70% of sales, and holds self-operated import and export rights. However, the provided information does not confirm certifications, after-sales capabilities, or verified customer cases. Trade records show limited documented import activity involving Uzbekistan and Kazakhstan, but these records alone do not establish broad customer performance or financial credibility.

Supplier typeThe supplier is explicitly identified as a factory/manufacturer and a limited company located in Hejian, Cangzhou, Hebei, China. Its stated business scope includes drilling equipment and manufacturing-related products, consistent with a specialized industrial manufacturer.

R&D capabilityThe supplier reports five years of total R&D engineer experience and states that it can design HY PDC bits according to customer requests. This provides explicit evidence of product-design capability, although no broader R&D team size, patents, testing facilities, or innovation results are given.

Production capacityThe supplier operates more than 10 production lines, employs 6–10 quality-control staff, and has a 10,000 m² manufacturing plant with 67 total employees. These stated operational resources support a positive assessment of production capability, though actual capacity and delivery performance are not specified.

Customization capabilityThe company explicitly states that it can design HY PDC bits according to customer requirements. Its listed product range includes PDC bits, tricone bits, roller cones, hole openers, rock reamers, and related drilling products, supporting product-specific customization capability.

Product Q&A

Q:How to get an exact quotation?

Please send detailed information including Tricone/PDC bits specifications, Hole opener details, Roller cutters, drilling depth, rock hardness, rig capacity, application type, Incoterm, and shipping method. Photos are also helpful.

Q:What are the lead time and payment terms?

Regular models are available in stock for prompt delivery. Mass production lead time depends on order quantity. We accept L/C, T/T, D/P, and PayPal.

Q:What is the center nozzle customization option?

The center nozzle can be customized to suit specific drilling conditions and requirements.

Q:What formations are suitable for IADC code 117?

Code 117 is suitable for very soft formations with low compressive strength and high drillability, such as clay, mudstone, and chalk.

Q:What is the maximum WOB and RPM for code 637?

For code 637, the WOB range is 0.5-1.2 kn/mm and RPM is 80-40. Note that upper limits should not be used simultaneously.