What is the minimum order quantity?

The minimum order quantity is 1 piece.

What is the lead time for production?

The average lead time is within 15 workdays for both peak and off-season periods.

8-1/2 Inch Tri-Cone Roller Drill Bits for Mining Rock

Name: 8-1/2 Inch Tri-Cone Roller Drill Bits for Mining Rock
Brand: Suzhou Energy Tool Co., Ltd.
SKU: 1959920411

Jiangsu, ChinaSuzhou Energy Tool Co., Ltd.

US$1,000.00-5,000.00

1 Piece

Sample price:US$1200.00/piece.Request sample

Product profile

Customization

Available

Customized

Length

Model NO.

Tricone Bit

Type

Rotary Drill Bit

Material

Tungsten Carbide

Usage

Wood Drilling, Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling

Name

TCI Tooth Tricone Bits

Diameter

8 1/2 Inch

Thread

4 1/2 Pin

IADC

517

Color

Customized Color

Transport Package

Wooden Case

Specification

8 1/2 inch

Trademark

ENG

Origin

Suzhou, China

HS Code

8207199000

Production Capacity

5000PCS/Year

Key features

High Wear Resistance: Optimized tooth structure and high-quality alloy material improve drill bit life and drilling speed.

Advanced Bearing System: High-precision rolling bearings with silver-plated surfaces ensure smooth rotation and longer service life.

Effective Sealing System: High-quality HNBR rubber seals provide excellent sealing, wear resistance, and high temperature resistance.

Enhanced Wellbore Cleaning: Center nozzle design speeds up cuttings return and prevents drill bit mud packing.

Gauge Protection: Wear-resistant alloy on palm tips and high-density teeth arrangement enhance gauge protection ability.

API & ISO Certified: Products strictly conform to API 7 requirements and ISO 9001 standards with 100% inspection.

Customizable Options: Offers full customization, minor customization, and flexible customization from samples or designs.

Professional Manufacturer: 100% real factory with over 10 years' experience and advanced 5-axis machining centers.

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: ≤10.53h

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.