What are the available sizes for the drill bits?

Standard sizes include 75mm, 76.5mm, and 77mm, with custom size options available to meet specific project requirements.

What is the warranty period for these drill bits?

We provide a 1-year warranty for all our drill bits.

Do you support customization for drill bit models?

Yes, we support full customization from samples, designs, and flexible requirements with the assistance of our experienced design and engineering team.

Extended Life Diamond Drill Bit for Professional Use

Name: Extended Life Diamond Drill Bit for Professional Use
Brand: Changsha Fast Drill Engineering Machinery Co., Ltd.
SKU: 2062321722

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

US$60.00

2-9 Pieces

US$55.00

10-49 Pieces

US$45.00

50-99 Pieces

US$35.00

100-999 Pieces

US$29.00

1,000+ Pieces

Sample price:US$60.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

AISI

Length

Stub-length

Type

Core Drill Bit

Material

High Manganese Steel

Usage

Well Drilling, PCB Drilling, Masonry Drilling

Bit Material

Hot Pressed Diamond

Diameter Sizes

Standard Sizes Include 75mm, 76.5mm, and 77mm, Wit

Drilling Speed

Capable of Rapid Drilling, Reducing The Time Requi

Durability

Designed for High Durability, These Drill Bits Min

Wear Rate

with a Low Wear Rate, These Drill Bits Extend Thei

Efficiency Improvement

The Design Optimizes for Reduced Resistance During

Drill Rig Stability

The Drill Bits Help Stabilize The Drilling Equipme

Hole Diameter Correction Capability

They Possess The Ability to Correct Hole Diameters

Ease of Operation

Easy to Operate and Maintain, Simplifying The Dril

Application Rangeapplication Range

Suitable for a Variety of Geological Conditions an

Video

Yes

API

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

Color

Customize

Transport Package

Wooden Box

Specification

75~77#

Trademark

FineDrill

Origin

Changsha, Hunan, China

HS Code

8430691900

Production Capacity

15, 000PCS/Year

Key features

Hot Pressed Diamond Tip: Superior durability and precision for hard rock and concrete drilling.

Customizable Sizes: Available in 75mm, 76.5mm, 77mm with custom options for specific projects.

Wireline Design: Enables quick bit changes, reducing downtime and increasing efficiency.

Versatile Applications: Suitable for geological exploration, construction, mining, and soil sampling.

1-Year Warranty: Comprehensive coverage for mechanical defects and quality assurance.

Full Customization Support: Customization from samples, designs, and flexible requirements available.

Professional QC Inspection: Strict inspection and testing for every order before shipment.

Low Wear Rate: Extended service life with optimized design for reduced resistance.

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: ≤18h

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 original manufacturer or trading company?

We are an integrated corporation specialized in manufacturing and exporting.

Q:What are your main products, and used for?

Our products include diamond core bits, PDC drill bits, reaming shells, core barrels, casing, drill rods, SPT equipment, drill rig and other drilling parts. They are mostly used for mineral exploration, geological drilling, geotechnical engineering, building wells drilling and soil sampling.

Q:Can you supply related drilling tools?

Yes, we can supply full set of drilling tools, such as drill pipe, tricone bit, PDC bit, drag bit, DTH hammer and bit. Moreover, we have drilling equipment like mud pump, air compressor, etc. as well.

Q:How about payment, MOQ and delivery methods?

1. Payment: T/T, L/C, Western Union, Paypal. 2. Min. order quantity: 1 piece. 3. Transportation: By DHL/TNT/FedEx express, air transportation, sea and train.

Q:How can you ensure the quality?

We have our professional QC and all the products will be strict inspection and testing for every order before shipment.