What is the gauge length?

The gauge length ranges from 2 to 3.5 inches.

What markets do you export to?

We export to over 30 countries including the United States, Australia, Russia, India, and various Middle Eastern and African nations.

8 1/2'' PDC Diamond Drill Bit Steel PDC Bit

Name: 8 1/2'' PDC Diamond Drill Bit Steel PDC Bit
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2309062005

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

US$700.00-1,400.00

1 Piece

Sample price:US$1400.00/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 drilling speed.

Hard Formation Capability: Parabolic crown and heavy density cutter layout for high compressive strength.

Multi-function Hydraulics: Deep slot and straight blade design for effective cooling in abrasive formations.

Customizable Blades: Available with 3 to 9 blades to suit specific drilling requirements.

Wide Size Range: Available sizes from 5 inches to 26 inches for various well types.

Durable Material: Constructed from high carbon steel with alloy or tungsten carbide body.

OEM/ODM Service: Full customization available for machine type and processing requirements.

Fast Delivery: Regular models in stock with prompt delivery and economical inland transport.

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: ≤6.77h 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, blades quantity, cutter size, drilling depth, rock hardness, rig capacity, application type, Incoterm, and transport 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 lead time depends on order quantity. We accept L/C, T/T, D/P, and PayPal. Peak and off-peak season lead times are within 15 workdays.

Q:What are the recommended operating parameters?

For the 8 1/2'' bit: Rotary Speed 60-300 RPM, Weight On Bit 20-110 KN, and Flow Rate 21-35 L/S.

Q:What cutter sizes are available?

Cutter sizes of 13mm, 16mm, and 19mm are available for this drill bit.

Q:What is the connection type?

The recommended connection type is 4 1/2'' REG.