What are the shipping options available?

We offer four main delivery channels: air, sea, express, and road transportation. Air freight options include DHL, UPS, EMS, TNT, and FEDEX.

What is the minimum order quantity?

The minimum order quantity is 1 Unit.

What types of rock formations can this drill bit handle?

It is applicable to clay, sand, gravel, weathered strata, loose soil, soft rocks, medium hard rock, hard rock, and super hard rock like granite and quartzite.

8inch Drilling Bits Four Wings Concave Diamoned Drill Bit for Well Drilling

Name: 8inch Drilling Bits Four Wings Concave Diamoned Drill Bit for Well Drilling
Brand: Guangzhou International Technology Co., Ltd.
SKU: 1914283381

Hunan, ChinaGuangzhou International Technology Co., Ltd.

US$47.00-719.00

1 Piece

Product profile

Customization

Available

Type

Mini Drill

Usage

Well Drilling

Model NO.

aa6 1/2

Certification

ISO9001

Thread Type

Male or Female

API

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

Weight

10kg

PDC Cutters

Good Quality

Material

Alloy Steel, Diamond, Carbide

Features

Fast Speed, High Efficiency

Formation

Medium Hard, Hard Rock Formation

Application

Groutiong Coal Mine Gas Discharge Water Well Drill

Transport Package

Carton or Wooden Box

Specification

75~325#

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

Customizable Thread Type: Thread type can be customized to Male or Female based on requirements.

Versatile Rock Adaptability: Highly adaptable to complex formations from loose soil to hardest rock.

High Verticality: Ensures high drilling verticality for precise operations.

Durable Construction: Made of alloy steel, diamond, and carbide with strong impact resistance.

6-Month Warranty: Covers defects like sheet falling or steel body cracking under normal use.

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: ≤3.53h

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 bit?

The geological drill bit has a 6-month warranty period covering issues like sheet falling or steel body cracking if confirmed by the quality department.

Q:Can the drill bit 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 the product?

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

Q:Is free sample available?

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

Q:What payment methods are accepted?

We accept T/T, L/C, D/A, D/P, Western Union, and MoneyGram for payment.