What is the minimum order quantity?

The minimum order quantity is 1 piece.

What is the warranty period?

We provide a 6-month warranty for our products.

What is the average lead time?

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

Long-Lasting Double-Tube Core Bit for Efficient Mining Operations

Name: Long-Lasting Double-Tube Core Bit for Efficient Mining Operations
Brand: Changsha Fast Drill Engineering Machinery Co., Ltd.
SKU: 2169370885

Hunan, ChinaChangsha Fast Drill Engineering Machinery Co., Ltd.

US$45.00

1-9 Pieces

US$44.00

10-99 Pieces

US$43.00

100-999 Pieces

US$40.00

1,000+ Pieces

Product profile

Customization

Available

Type

Core Drill

Usage

Metal Drilling, Well Drilling, Wood Drilling

Machine Type

Drilling Tool

Material

Carbon Steel, Diamond

Diameter

3.85 Inch

Key Words2

Hot Press Diamond Drill Bit

Use

Coal Mining

Manufacturing Process

Forging

Weight

0.8

Video Outgoing-Inspection

Supported

Key Words

Water Well Core Drill Bit

Advantage

Wear Resistant

Applicable Industries

Energy & Mining

Size

75mm

Product Name

Electroplating Drill Bits

Color

Customized

Transport Package

Carton or Wooden Box

Specification

DCDMA, CDDA, ISO

Origin

Changsha, Hunan, China

HS Code

8430691900

Production Capacity

15, 000PCS/Year

Key features

Double-Tube Core Design: Outer tube rotates while inner tube stays stationary for complete core retrieval.

Wear Resistant Material: Made of carbon steel and diamond, ensuring durability in hard geological strata.

Wide Size Range: Available in sizes from 56mm to 270mm to suit various drilling needs.

Customizable Options: Supports customization from samples, designs, and flexible minor adjustments.

Multi-Industry Application: Suitable for mineral exploration, geological drilling, and building wells.

Quality Assurance: Professional QC team performs strict inspection and testing before shipment.

Low MOQ: Minimum order quantity is just 1 piece, ideal for small-scale testing.

Fast Delivery: Average lead time within 15 workdays for both peak and off-season.

Company profile

High Repeat Buyers ChoiceCustomization from SamplesODM ServicesFast Delivery

Changsha Fast Drill Engineering Machinery Co., Ltd.

Hunan, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Changsha Port, Shenzhen PortAverage Response Time: ≤24h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company and limited company, with a business scope covering drilling equipment, drilling rigs, core bits, mechanical equipment, communication technologies, software development, and related services. It demonstrates broad customization options and provides ODM services, but reported no new products in the past year, no 3D software design, no SDK, and no professional technical supplier R&D capability. Service-management controls are weak: no written procedures or records were provided for supplier assessment, corrective actions, or complaint handling. No overseas warehouse, showroom, overseas agent or branch, or offline trade-show participation was reported. Raw-material traceability is unknown. The provided financial records show zero stated operating revenue, operating costs, gross profit, and operating profit for the reported periods; no monetary figures are reproduced here.

After-Sales capabilityThe supplier reported no written procedures or records for effective service-capability assessment, corrective and preventive actions, or customer complaint handling. It also reported no overseas warehouse, showroom, overseas agent or branch, or offline trade-show participation, indicating limited documented after-sales and overseas service infrastructure.

Financial creditThe provided financial-capacity records state zero operating revenue, operating costs, gross profit, and operating profit for the reported periods. These figures provide explicit evidence of no recorded operating activity in the supplied data and do not support strong financial credibility.

R&D capabilityThe supplier reported no new products in the past year, no product-information R&D capability, no professional technical supplier R&D capability, no 3D software design service, and no available SDK. Although ODM service is available, the overall evidence shows limited demonstrated innovation capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization; it also provides ODM services. These statements directly support a broad customization offering, although they do not establish manufacturing execution capacity.

Product Q&A

Q:Are you a manufacturer or trading company?

We are an integrated corporation specialized in manufacturing and exporting.

Q:What are your main products?

Our products include diamond core bits, PDC drill bits, reaming shells, core barrels, casing, drill rods, SPT equipment, drill rigs, and other drilling parts.

Q:Can you supply related drilling tools?

Yes, we supply full sets of drilling tools such as drill pipes, tricone bits, PDC bits, drag bits, DTH hammers, and equipment like mud pumps and air compressors.

Q:What are the payment terms and delivery methods?

Payment: T/T, L/C, Western Union, Paypal. Delivery: DHL/TNT/FedEx express, air, sea, and train transportation.

Q:How do you ensure product quality?

We have a professional QC team that performs strict inspection and testing on every order before shipment.