What payment methods do you accept?

We accept T/T, L/C, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow in various currencies.

What is the lead time for production?

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

What materials are used for the drill bits?

Our drill bits are made from high manganese steel and feature diamond composite sheets.

Four-Wing Concave Coreless Drill Bits for Mining

Name: Four-Wing Concave Coreless Drill Bits for Mining
Brand: Qidong Fengsu Drilling Tools Co., Ltd.
SKU: 2036008732

Hunan, ChinaQidong Fengsu Drilling Tools Co., Ltd.

US$171.00

1-19 pieces

US$166.00

20-49 pieces

US$161.00

50+ pieces

Product profile

Customization

Available

Warranty

6 Months

Standard

AISI

Model NO.

200#

Manufacturing Process

Casting

Material

Carbide

Weight (Kg)

Processing Type

Casting

Machine Type

Drilling Tool

Use

Coal Mining

Size

200mm

Color

Yellow

Showroom Location

None

MOQ

1 Piece

Key Words3

Coreless Drill Bits

Key Words2

Concave Coreless Drill Bits

Video Outgoing-Inspection

Provided

Type

Drill Bit

Applicable Industries

Energy & Mining

Application

for Mining

Machinery Test Report

Provided

Transport Package

Wooden Case

Specification

200mm

Trademark

Speed Made

Origin

Hunan, China

Key features

Customized Color Options: Available in customized colors to meet specific project requirements.

1-Year Warranty Coverage: Comprehensive 1-year warranty for all mechanical defects and performance issues.

Full Customization Service: Offers full customization, minor customization, and flexible options from designs or samples.

High Manganese Steel Material: Constructed with high manganese steel for superior durability in mining applications.

Forging Manufacturing Process: Utilizes advanced forging technology for enhanced structural integrity.

100% Finished Product Inspection: Every unit undergoes 100% visual inspection with standardized QA/QC procedures.

Pre-Production Sample Guarantee: Provides pre-production samples before mass production to ensure quality standards.

Global Shipping Terms: Flexible delivery terms including FOB, CIF, EXW, and Express Delivery available.

Company profile

ODM ServicesR&D CapabilitiesManagement Certification

Qidong Fengsu Drilling Tools Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 7 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: >24h

AI-Powered supplier vetting

SummaryThe supplier operates in metal tool, drilling equipment, mining machinery, mechanical equipment, and related metal-product businesses. It reports ISO9001:2015 and ISO14001 certifications, as well as additional management-system certifications including BSCI, TS16949, and GMP, although the applicable scope and validity are not specified. Service procedures, corrective-action procedures, and complaint-handling records are stated to exist. The supplier offers OEM and ODM services and launched new products during the past year, but it has no available SDK and only two R&D engineers are reported. Production information includes five production lines and 31–40 quality-control staff; the stated output figure is omitted for privacy. Financial records are identified for 2021–2023, but no financial results are provided. No Fortune 500 cooperation is reported, and overseas-service coverage is listed as zero.

Supplier typeThe supplier is a manufacturer and seller of metal tools, drilling and oil-production equipment, mining machinery, mechanical parts, hardware, and metal materials. Its product description specifically covers drill bits for water wells, natural gas, oil, coal, geothermal, and geological exploration applications.

CertificationsThe supplier reports ISO9001:2015 and ISO14001 certifications, while another slice lists BSCI, TS16949, ISO9001, and GMP management-system certifications. The records do not specify certificate scope, issuing bodies, or validity dates, but they explicitly evidence multiple certifications.

After-Sales capabilityThe supplier states that it has written procedures and implementation records for service capability assessment, corrective and preventive actions, and customer complaint handling. However, overseas-service coverage is recorded as zero, so the evidence supports formal service processes but not broad international service reach.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and has R&D engineers with 6–10 years of total experience. It also reports only two R&D engineers and explicitly states that no SDK is available, indicating some product-development capability but limited evidence of broader technical resources.

Production capacityThe supplier reports five production lines and 31–40 quality-control staff, providing explicit evidence of an organized manufacturing and quality-control setup. The supplier also states an annual production-output range, but that figure is excluded here under the privacy requirement; product-specific capacity is not provided.

Customization capabilityThe supplier explicitly offers ODM and OEM services and provides different drill-bit models and sizes for varied applications and rock conditions. This supports customization capability for relevant products, although the scope of engineering changes and customization limits is not detailed.

Client casesThe supplier explicitly reports no cooperation with Fortune 500 companies. Although it states a preference for repeat buyers at 80%–100%, no named customers, reference projects, or verifiable customer cases are provided.