What is the lead time for production?

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

Are video inspections available before shipment?

Yes, we provide video outgoing-inspection to ensure product quality before delivery.

What industries can these drill bits be used for?

They are suitable for construction works, energy & mining, and geological exploration.

Premium Nq Hq Pq Diamond Core Bits for Geological Drilling

Name: Premium Nq Hq Pq Diamond Core Bits for Geological Drilling
Brand: Changsha Fast Drill Engineering Machinery Co., Ltd.
SKU: 2168993195

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

US$49.90

1-9 Pieces

US$48.90

10-99 Pieces

US$46.90

100-999 Pieces

US$45.90

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

Hot Press 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

High-Speed Drilling: Special compound bit with diamond compact pieces for fast drilling in soft to hard strata.

Wear Resistant: Made of carbon steel and diamond, offering superior wear resistance for long service life.

Versatile Application: Suitable for red sandstone, conglomerate, shale, and other strata of equal hardness.

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

Quality Assurance: Video outgoing-inspection and machinery test reports provided before shipment.

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

6-Month Warranty: Comprehensive 6-month warranty coverage for peace of mind.

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: ≤15h

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.