What are the delivery methods?

We offer transportation via DHL/TNT/FedEx express, air transportation, sea freight, and train.

What is the lead time for orders?

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

High-Precision Diamond Drill Bit for Borehole Diameter Control

Name: High-Precision Diamond Drill Bit for Borehole Diameter Control
Brand: Changsha Fast Drill Engineering Machinery Co., Ltd.
SKU: 2062361322

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: Features superior durability and precision for hard rock and concrete drilling.

Custom Size Options: Available in 75mm, 76.5mm, 77mm with custom sizes to meet specific project needs.

Wireline Design: Allows quick and easy bit changes, reducing downtime and increasing site efficiency.

Multi-Application Range: Suitable for geological exploration, construction, mining, and various geological conditions.

Low Wear Rate: Designed for high durability, extending service life and improving drilling efficiency.

1-Year Warranty: Comprehensive 1-year warranty coverage for all products to ensure reliability.

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

Flexible Customization: Supports customization from samples, designs, and minor adjustments by experienced engineers.

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 drilling equipment.

Q:What are your main products?

Our products include diamond core bits, PDC drill bits, reaming shells, core barrels, casing, drill rods, and drilling rigs, used for mineral exploration and geological drilling.

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, mud pumps, and air compressors.

Q:What are the payment terms and MOQ?

Payment methods include T/T, L/C, Western Union, and PayPal. The minimum order quantity is 1 piece.

Q:How do you ensure product quality?

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