Where is the company located?

We are located in Hebei, China, near Beijing airport and Tianjin seaport for convenient transportation.

4 1-2 Steel Core Hard Rock Drilling Bits

Name: 4 1-2 Steel Core Hard Rock Drilling Bits
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2048369585

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

US$300.00-800.00

1 Piece

Sample price:US$500.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

AISI

Model NO.

4 1/2''

Length

Taper-length

Type

Center Drill Bit

Material

High Carbon Steel

Usage

Well Drilling

Machine Type

Drilling Tool

Body Material

Alloy

Advantage

High-Efficiency ,Wear Resistant

Bearing Type

Friction/Roller/Flosting Bearing Bit

Drilling Formationn

Soft to Hard

Use

Oil,Gas,Wells

Available Size

3 Inch-30 Inch

Manufacture Processing

Forging

Machining

OEM,Customize Base on Drawing

Transport Package

Wooden Case

Specification

4 1/2''

Trademark

LONGYUE

Origin

Hebei, China

HS Code

8207199000

Production Capacity

200 Pieces/Month

Key features

Wide Size Range: Available sizes from 3 Inch to 30 Inch for various drilling needs.

High Efficiency: Features wear resistance and high-efficiency performance in drilling.

Customizable Design: OEM and customization available based on customer drawings.

Versatile Application: Suitable for oil, gas, wells, and HDD applications.

Fast Delivery: Regular models in stock with prompt delivery advantages.

Flexible Payment: Accepts L/C, T/T, D/P, and PayPal payment terms.

Professional Support: Detailed quotation support based on specific drilling parameters.

Quality Material: Constructed from high carbon steel and alloy for durability.

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: ≤5.14h 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, rock hardness, drill rig capacity, and application details. Photos are also helpful.

Q:What are the payment terms?

We accept L/C, T/T, D/P, and PayPal.

Q:What is the lead time for orders?

Regular models are available in stock for prompt delivery. Mass production lead time depends on order quantity, typically within 15 workdays.

Q:Is customization available?

Yes, OEM and customization services are available based on customer drawings.

Q:What sizes are available for these drilling bits?

Available sizes range from 3 Inch to 30 Inch.