Where is your factory located and how is transportation?

Our factory is in Hebei, China, near Beijing airport and Tianjin seaport. Transportation to these ports takes only one day, ensuring fast and economical inland charges.

What is the average lead time during peak season?

The average lead time is within 15 workdays during both peak and off-peak seasons.

8 1/2 Inch PDC Diamond Core Drilling Bit for Hard Rock

Name: 8 1/2 Inch PDC Diamond Core Drilling Bit for Hard Rock
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2051655995

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

US$2,000.00-4,000.00

1 Piece

Sample price:US$4000.00/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

Body Material

Alloy or Tungston Carbrid

Available Size

5 Inch-26 Inch

Cutter Size

13,16,19mm

Blades Quantity

3-9 Blades

Use

Oil,Gas,Wells

Formation

Soft to Hard

Transport Package

Wooden Case

Specification

8 1/2''

Trademark

LONGYUE

Origin

Hebei, China

HS Code

8207191000

Production Capacity

200 Pieces/Mouth

Key features

High ROP Performance: Unique cutter arrangement keeps cutting edge sharp for maximum Rate of Penetration.

Hard Formation Application: Parabolic crown profile and heavy density cutter layout for high compressive strength formations.

Multi-function Hydraulics: Deep slot and straight blade design effectively cool the bit in hard and abrasive formations.

Customizable Cutter Size: Available cutter sizes include 13mm, 16mm, and 19mm to meet specific drilling needs.

Wide Size Range: Bit sizes available from 4 1/2 inches to 17 1/2 inches (114mm-444.5mm).

Flexible Blade Options: Blades quantity ranges from 3 to 9 blades depending on formation and application.

OEM Service Available: We can manufacture various PDC bits according to specific customer requirements.

Fast Delivery: Regular models in stock with delivery time of 3-7 days after payment.

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: ≤5.03h 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 (Tricone, PDC, etc.), diameter, IADC code, body material, blades quantity, cutter size, drilling depth, rock hardness, rig capacity, application type, Incoterm, and shipping method. Sending photos is also a simple way.

Q:What are the lead time and payment terms?

Regular models are available in stock for prompt delivery. Mass production depends on order quantity. We accept L/C, T/T, D/P, and PayPal. Delivery is 3-7 days after payment for stock items.

Q:What is the delivery time for stock items?

We have enough stock for this type, and delivery takes 3-7 days after payment.

Q:Can you customize the PDC bits?

Yes, we offer OEM services and can make various PDC bits according to customers' requirements regarding size, blades, and cutter specifications.

Q:What payment terms do you accept?

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