Are free samples available?

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

What are the main delivery channels?

There are four main delivery channels: air (DHL, UPS, EMS, TNT, FEDEX), sea, express, and road transportation.

What types of rock formations can this drill bit handle?

It is suitable for loose soil, loose rocks, soft rocks, slightly softer rocks, slightly harder rock, medium hard rock, hard rock, and super hard rock.

High-Quality 75mm-91mm Hard Rock PDC Bit Special-Shaped Teeth Diamond Core Bits

Name: High-Quality 75mm-91mm Hard Rock PDC Bit Special-Shaped Teeth Diamond Core Bits
Brand: Guangzhou International Technology Co., Ltd.
SKU: 2004741145

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.

75mm-91mm

Certification

ISO9001

API

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 drills.

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

Customizable Design: Drill bits can be customized according to different rock formations.

Versatile Application: Suitable for water well drilling, coal mine gas drainage, and geological exploration.

Super Hard Material: Made with diamond compacts and alloy steel for hard rock drilling.

High Verticality: Ensures high drilling verticality for precise operations.

Wide Size Range: Available in sizes from 32mm to 219mm including special types.

ISO9001 Certified: Manufacturing process certified under ISO9001 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: ≤3.68h

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 covering defects like sheet falling or steel body cracking 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 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 seasons, lead time is within 15 workdays, and off-season lead time is also within 15 workdays.

Q:What payment methods are accepted?

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

Q:What is the minimum order quantity?

The minimum order quantity is 1 Unit.