What industries can this drill bit be used for?

It is suitable for the mining industry, including grouting holes, water wells, and various rock strata.

How do you guarantee the quality of the drill bits?

We always provide a pre-production sample before mass production and conduct a final inspection before shipment.

What are the available sizes for this drill bit?

Available sizes include 75mm, 91mm, 113mm, 133mm, 153mm, 171mm, 200mm, etc.

Three-Wing Reinforced Concave Coreless Drill Bit for Mining

Name: Three-Wing Reinforced Concave Coreless Drill Bit for Mining
Brand: Qidong Fengsu Drilling Tools Co., Ltd.
SKU: 2042196962

Hunan, ChinaQidong Fengsu Drilling Tools Co., Ltd.

US$56.00

1-49 Pieces

US$55.00

50-99 Pieces

US$54.00

100+ Pieces

Sample price:US$78.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Warranty

1 Year

Model NO.

91#

Certification

CE, ISO 9001:2000

Standard

AISI, ASME, ANSI

Surface Treatment

Oxidation

Manufacturing Process

Forging

Material

Carbon Steel

Weight (Kg)

2.6

Condition

New

Usage

Mining Industry

Processing Type

Forging

Machine Type

Drilling Equipment

Use

Coring Exploration

Size

91mm

Color

Customized

Bit Type

Three Wing Bit

MOQ

50 PCS

Applicable Industries

50 PCS

Marketing Type

New Product 2022

Advantage

Wear Resistant

Thread Type

Male Female Thread

Machinery Test Report

Provided

Transport Package

Carton/ Paper Box/ Wooden

Specification

91mm

Trademark

SPEEDMADE

Origin

Hunan, China

HS Code

82071300

Key features

Wear Resistant Material: Made of carbon steel with oxidation surface treatment for enhanced durability in mining.

Customizable Color: Color options are customized to meet specific client requirements.

Professional Manufacturing: Produced by a professional manufacturer with advanced technology and standardized management.

Quality Assurance: Strict quality control with pre-production samples and final inspections before shipment.

Wide Application Range: Suitable for limestone, dolomite, coal rock, and various strata in mining and drilling.

Global Certification: Certified with CE and ISO 9001:2000 standards for international compliance.

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

1-Year Warranty: Comprehensive 1-year warranty coverage for peace of mind and after-sales support.

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.