What are the main applications of these drill bits?

They are used for water well drilling, coal mine geology, underground gas drainage, anchor net support, civil engineering, geological exploration, and mineral exploration.

What is the minimum order quantity?

The minimum order quantity is 1 Unit.

Manufacturer High Quality 91mm Hard Rock Reinforced Gauge PDC Diamond Core Bits

Name: Manufacturer High Quality 91mm Hard Rock Reinforced Gauge PDC Diamond Core Bits
Brand: Guangzhou International Technology Co., Ltd.
SKU: 2004803505

Hunan, ChinaGuangzhou International Technology Co., Ltd.

US$10.00-789.00

1 Piece

Product profile

Customization

Available

Type

Mini Drill

Usage

Well Drilling

Model NO.

91MM

Certification

ISO9001

Measure

3 1/2" 3 7/8" 4 1/2"Support Customization

Material

Alloy Steel, Diamond, Carbide

Weight

6kg

Formation

Medium Hard, Hard Rock Formation

Application

Groutiong Coal Mine Gas Discharge Water Well Drill

Features

Fast Speed, High Efficiency

Transport Package

Carton or Wooden Box

Specification

75#91#115/132/140/152/165/200/250#

Trademark

pearldrill

Origin

Hunan

HS Code

8207191000

Production Capacity

5000000pieces/Year

Key features

Extended Service Life: Service life is 10 to 30 times longer than normal carbide drill bits.

High Efficiency Drilling: Features fast speed, high efficiency, strong wear resistance, and impact resistance.

Versatile Rock Adaptability: Highly adaptable to complex formations from loose soil to hardest rocks like granite and quartzite.

High Verticality: Designed with high drilling verticality for precise underground operations.

Durable Composite Structure: Welded composite pieces provide blade strength and stability in hard rock formations.

Direct Pipe Connection: Super-hard geological diamond design allows direct connection to drill pipes.

ISO 9001 Certified: Manufacturing process meets ISO 9001 quality management system standards.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Guangzhou International Technology Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 6 Years CertifiedNearest Port: Guangzhou PortAverage Response Time: ≤3.75h

AI-Powered supplier vetting

SummaryGuangzhou International Technology Co., Ltd. is identified as a limited trading company with seven employees, valid import/export licensing, and six years of export experience. It reports that exports account for 90% of sales and offers customization from samples and ODM services. Its stated product focus includes rock drills, drilling tools, drilling rigs, and related equipment. However, the available evidence shows no inventory, overseas warehouse, or overseas showroom capability; no Fortune 500 customer cooperation; no new products launched in the past year; and only one R&D engineer. Formal supplier approval, corrective/preventive action, complaint-handling, and service-capability assessment procedures are not documented. Financial credibility, certifications, production capacity, and verified customer cases cannot be adequately assessed from the provided information.

Supplier typeThe supplier is explicitly classified as a trading company and a limited company, with no indication that it belongs to a larger corporate group. Its stated business scope covers mechanical and electrical equipment and multiple product categories, while its product description emphasizes drilling-related products.

After-Sales capabilityThe supplier has no stated in-stock service capacity, overseas warehouse, or overseas showroom. It reports lead times within 15 working days and accepts several quotation terms, but complaint handling, corrective/preventive actions, and formal service-assessment procedures have no written procedures or records.

R&D capabilityThe supplier has one R&D engineer and provides ODM services, with the ability to customize design and development for application environments or specified requirements. However, it launched no new products in the past year, lacks an SDK, and reports no R&D capability with product information.

Customization capabilityThe supplier explicitly offers customization from samples, ODM services, and design/development tailored to a customer’s application environment or specified requirements. These statements provide direct evidence of customization capability, although no scale or delivery-performance details are supplied.

Product Q&A

Q:What is the warranty period for the drill bits?

The geological drill bit has a 6-month warranty period. Compensation is provided for abnormal scrap such as sheet falling, steel body cracking, or lamination if confirmed by the quality department.

Q:Can the drill bits be customized for specific rock formations?

Yes, different drill bits can be customized according to different rock formations. Please provide your rock formation information or detailed size drawings for DIY customization.

Q:What is the delivery time for orders?

The normal delivery time is 7-12 days. During peak season, lead time is within 15 workdays, and during off-season, it is also within 15 workdays.

Q:Are free samples available?

Yes, some samples can be provided free of charge upon request.

Q:What payment methods are accepted?

Accepted payment methods include T/T, L/C, D/A, D/P, Western Union, and MoneyGram.