What payment terms do you accept?

We accept LC, D/P, T/T, PayPal, Western Union, and small-amount payments.

Are OEM and ODM services available?

Yes, we provide both OEM and ODM services with customization options from samples, designs, and full customization.

What is the difference between Milled Tooth and TCI bits?

Milled Tooth bits are for soft to very soft rock formations, while TCI (Tungsten Carbide Insert) bits are optimized for middle to hard rock formations.

8-1/2" Roller Cone Milled Tooth Tricone Drill Bit

Name: 8-1/2" Roller Cone Milled Tooth Tricone Drill Bit
Brand: Suzhou Energy Tool Co., Ltd.
SKU: 790253162

Jiangsu, ChinaSuzhou Energy Tool Co., Ltd.

US$600.00-3,000.00

1 Piece

Sample price:US$800.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

API

Model NO.

Tricone bit

Length

Stub-length

Type

Center Drill Bit

Material

Tungsten Carbide

Usage

Well Drilling, Mining Drilling

Cutter /Button Type

Semi-Ballistic / Parabolic

Bearing Type

Jouneral Bearing Sealed

Seal Type

Rubber Seal

Surface Treatment

Spray Paint

Rock Formation

Middle to Hard and Abrasive Rock

Rock Type

Solid Sandstone, Limestone, Marble, Dolomite,

Usage Area

Well Drilling Equipment

Cycle Type

Liquid Cycle or Air Cycle

Welding Type

Laser Welding or High Frequency

Application

Oil Well ,Mining Well ,Water Well ,Geographical Ex

Order Type

OEM , ODM

Advantage

High Performance and Long Life

Average Leadtime

7-15days

Warranty Period

1 Year

Transport Package

Wooden Box

Specification

Milled Tooth

Trademark

EGT

Origin

China

HS Code

8207191000

Production Capacity

5000PCS

Key features

API Certified Quality: Manufactured according to strict API specifications for reliable performance.

Tungsten Carbide Material: Features extremely hard tungsten carbide inserts, second only to diamond in hardness.

Customizable Configurations: Offers semi-ballistic, parabolic, and various insert shapes tailored to rock grades.

Versatile Rock Application: Suitable for soft to hard formations including shale, limestone, sandstone, and dolomite.

Cost-Effective Solution: Lower price compared to diamond drill bits while maintaining high drilling efficiency.

Flexible Bearing Options: Operators can choose between open and sealed bearings for specific durability needs.

Fast Delivery Time: Average lead time of 7-15 days for both peak and off-peak seasons.

Comprehensive Warranty: Includes a 1-year warranty period covering mechanical defects.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast DeliveryLow MOQ

Suzhou Energy Tool Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤8.34h

AI-Powered supplier vetting

SummaryThe supplier is a 26-employee manufacturing factory in Zhangjiagang, Suzhou, producing PDC and tricone bits. It provides OEM services for well-known brands, ODM services, and broad customization based on samples or designs. R&D uses AutoCAD, Pro/E, and SolidWorks, and the supplier reports new products within the past year; however, it lacks available SDKs and auditable R&D design documentation. Quality-related procedures and records are reported for corrective actions, complaint handling, supplier-service assessment, and finished-product inspection, with one quality inspector identified. Service strengths include stocked products, participation in the OCT offline trade show, and stated peak- and off-season lead times within 15 working days. Limitations include no valid manufacturing contract with related subcontractors, no overseas warehouse, showroom, agent, or branch, and zero stated countries served overseas. Financial information is insufficient for a credibility judgment.

Supplier typeThe supplier is explicitly identified as a factory and limited company in the manufacturing industry, located in Zhangjiagang, Suzhou, with 26 employees and no stated parent or affiliated company. This supports classification as a standalone small manufacturing supplier.

After-Sales capabilityThe supplier reports clear procedures and followed records for corrective and preventive actions and customer complaints, plus written procedures and records for service-capability assessment. It also has in-stock capacity and has participated in an offline trade show, but lacks overseas warehouses, showrooms, agents, and branches, with zero countries stated for overseas services.

R&D capabilityThe supplier reports new products within the past year, offers ODM services, and uses AutoCAD, Pro/E, and SolidWorks; its R&D role includes new-product development, drawing design, and production technology support. However, no SDK is available and no auditable R&D design input, output, review, verification, or validation documents are available.

Production capacityThe supplier is a manufacturing factory with lathing, CNC, and automatic-lathing facilities, one quality inspector, standardized finished-product inspection instructions, stocked-service capacity, and stated lead times within 15 working days in both peak and off seasons. A material weakness is the absence of a valid contract between the factory and related subcontractors.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization, and also reports ODM capability. These repeated service descriptions provide direct evidence of broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands and has participated in the OCT offline trade show. No specific customer names, project details, order history, or independently verifiable case information is provided.

Product Q&A

Q:What types of rock formations can this drill bit handle?

It is designed for soft to very soft formations like shale and clay, as well as medium to hard formations including limestone, sandstone, and dolomite.

Q:Is the drill bit customizable?

Yes, we offer full customization, minor customization, and flexible options based on samples or designs, including cutter type and bearing selection.

Q:What is the average lead time for orders?

The average lead time is 7-15 days, with both peak and off-peak seasons guaranteeing delivery within 15 workdays.

Q:What is the warranty period for this product?

We provide a 1-year warranty period for all our Tricone drill bits.

Q:What are the minimum order quantities?

The minimum order quantity is 1 PC, allowing for flexible purchasing for various project needs.