How is the product quality ensured?

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

What is the lead time for delivery?

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

118mm 133mm 146mm 168mm 216mm Symmetric Concentric Overburden Casing Drilling System Tools for Accurate Drilling

Name: 118mm 133mm 146mm 168mm 216mm Symmetric Concentric Overburden Casing Drilling System Tools for Accurate Drilling
Brand: Changsha Fast Drill Engineering Machinery Co., Ltd.
SKU: 1955042541

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

US$2,600.00

2-9 Pieces

US$2,200.00

10-49 Pieces

US$1,800.00

50-99 Pieces

US$500.00

100+ Pieces

Product profile

Customization

Available

Customized

Standard

AISI

Length

Stub-length

Type

Drill Tool

Material

Alloy Steel

Usage

Well Drilling

Matched Drill Rig

DTH Drill Rig

Inserts Design

Spherical; Ballistic; Parabolic

Product Name

Casing System

Processing Type

Forging

Use

Well Drilling,Coal Mining,Quarry Drilling

Application

Water Well Drilling

Color

Customized

Features

Fast Speed, High Efficiency

Advantage

High Performance

Video Outgoing-Inspection

Supported

Condition

New

Parts

Pilot Bit Blcoks

Face Design

Flat;Convex;Concave

Dimension

118mm-216mm

Key Word

Concentric Casing Drilling Tools

Transport Package

Wooden Box

Specification

76-1000mm

Origin

Changsha, Hunan, China

HS Code

82071990

Production Capacity

15, 000PCS/Year

Key features

Economical Retrieval Design: Reaming wing bit is retrievable for reuse in the next hole, reducing overall drilling costs.

High Efficiency Drilling: Enhances penetration speed and perpendicularity while reducing torque requirements during operation.

Wide Diameter Range: Compatible with casing tubes ranging from 114mm to 1067mm in diameter for versatile applications.

Premium Material Quality: Features high-grade tungsten carbide inserts and bit bodies made from high-grade steel.

Advanced Manufacturing: Processed using state-of-the-art CNC machinery and precise heat treatment for durability.

Versatile Application: Suitable for water wells, geothermal wells, micropiles, and various angle holes.

Customizable Options: Color and inserts design (Spherical, Ballistic, Parabolic) are fully customizable.

Low Environmental Impact: Designed to have the lowest possible effect on the environment during drilling operations.

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.

Product Q&A

Q:What is the warranty period?

We provide a comprehensive 2-year warranty for all our mechanical equipment.

Q:What are the main applications for this drilling system?

It is suitable for drilling water wells, geothermal wells, short micropiles, medium mini-type grouting holes, and diamond harbor projects.

Q:How does the concentric casing system work?

The reamer bit rotates to enlarge the hole for casing insertion, then retracts when the required depth is reached, allowing the system to pass through the casing.

Q:What is the minimum order quantity?

The minimum order quantity is 1 piece.

Q:What payment methods do you accept?

We accept T/T, L/C, Western Union, PayPal, D/P, and small-amount payments.