What are the lead times for production?

Both peak and off-peak season lead times are within 15 working days.

What payment methods do you accept?

We accept T/T, PayPal, D/P, Western Union, Small-amount payment, and LC.

What is the material composition of the drill bits?

The bits are made of carbon steel and diamond, designed for wear resistance.

Premium Diamond Core Drill Bits for Efficient Rock Excavation

Name: Premium Diamond Core Drill Bits for Efficient Rock Excavation
Brand: Changsha Fast Drill Engineering Machinery Co., Ltd.
SKU: 2174658025

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 Performance: Features special compound bit design with diamond compact pieces for superior speed in soft to hard strata.

Versatile Strata Application: Suitable for red sandstone, hard old red sandstone, conglomerate, sandstone, shale, and incomplete strata.

Customizable Color Options: Color is fully customizable to meet specific project requirements.

Comprehensive Video Inspection: Video outgoing-inspection is supported to ensure product quality before shipment.

Flexible Customization Services: Offers full, minor, and flexible customization from samples or designs.

Wear Resistant Material: Constructed with carbon steel and diamond for enhanced durability and wear resistance.

Low Minimum Order Quantity: Accepts orders starting from just 1 piece for geological exploration needs.

Fast Lead Time: Peak and off-peak season lead times are both within 15 working days.

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.