What is the minimum order quantity?

The product description does not specify a minimum order quantity.

What are the main markets?

Main markets include North America, South America, Europe, Southeast Asia/Mideast, Africa, East Asia, Australia, and Domestic market.

What is the material of the drill bit?

The drill bit is made of High Carbon Steel with tungsten carbide inserts and inlaid friction-reducing alloy.

Factory Directly Supply 8 1/2 Inch Roller Cone Drill Bit

Name: Factory Directly Supply 8 1/2 Inch Roller Cone Drill Bit
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2106106955

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

US$400.00-800.00

1 Piece

Sample price:US$400.00/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 service life.

Advanced Bearing System: Equipped with metal sealed and rubber sealed bearings with advanced grease pressure control.

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

Wide Size Range: Available in sizes 7 1/2'', 8 1/2'', 9 7/8'', and 12 1/4'' for various drilling applications.

Enhanced Gauge Protection: More carbide inserts on the shirttail increase gauge holding capability and bearing life.

Multiple IADC Codes: Supports IADC codes 117, 127, 126, 217, 417, 437, 517, 537, 617, 627, 637, 737.

OEM/ODM Service: Manufacturer offers OEM and ODM services with 5 R&D engineers for custom solutions.

Fast Delivery: Regular models in stock with prompt delivery; mass production within 15 workdays.

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 bit type, diameter, IADC code, drilling depth, rock hardness, rig capacity, application, and Incoterm. Photos are also helpful.

Q:What are the payment terms?

We accept all regular payment terms including L/C, T/T, D/P, and PayPal.

Q:What is the lead time for production?

Regular models are available in stock for prompt delivery. Mass production lead time is within 15 workdays for both peak and off-season.

Q:What is the warranty period?

The product description does not specify a warranty period.

Q:Can the product be customized?

Yes, the center nozzle can be customized, and OEM/ODM services are available.