What is the minimum order quantity?

The minimum order quantity is 1 piece.

What is the lead time for delivery?

Peak Season Lead Time is within 15 workdays, and Off Season Lead Time is within 15 workdays.

Do you offer customization services?

Yes, we offer customization from designs, full customization, customization from samples, minor customization, and flexible customization.

Four Wings Concave PDC Drill Bit for Limestone Mining Drilling

Name: Four Wings Concave PDC Drill Bit for Limestone Mining Drilling
Brand: Qidong Fengsu Drilling Tools Co., Ltd.
SKU: 2072214602

Hunan, ChinaQidong Fengsu Drilling Tools Co., Ltd.

US$85.00

1-49 pieces

US$79.00

50-99 pieces

US$70.00

100-199 pieces

US$65.00

200+ pieces

Sample price:US$999.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

as Needed

Warranty

as Needed

Model NO.

75#

Certification

ISO 9001:2000, ISO 9001:2008

Standard

AISI

Surface Treatment

Polishing

Manufacturing Process

Forging

Material

Alloy Steel

Weight (Kg)

1.7

Condition

New

Processing Type

Forging

Machine Type

Horizontal Drill

Use

Ore Mining

Size

75mm

Color

Customized Color

Key Word

Spiral Straight Concave Coreless Drill Bit

MOQ

1 Piece

Key Words2

Stone Mining

Video Outgoing-Inspection

Provided

Type

Drill Bit

Application

Mining

Machinery Test Report

Provided

Transport Package

Wooden & Carton

Specification

as customer need

Trademark

Speedmade

Origin

China

HS Code

84314310

Production Capacity

5000000000000

Key features

Spiral Inlet Design: Features spiral inlet with chamfered and inverted triangle pieces for efficient slag discharge.

Tungsten Carbide Alloy: Constructed with rigid tungsten carbide alloy material for long service life in various strata.

Straight Drilling Capability: Enables straight drilling without eccentric holes for different geological formations.

Customized Color Option: Available in customized color options to meet specific requirements.

ISO 9001 Certified: Manufactured under ISO 9001:2000 and ISO 9001:2008 quality management standards.

Video Inspection Provided: Video outgoing-inspection and machinery test reports are provided for quality assurance.

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

Global Market Presence: Products praised by customers in Canada, Russia, South Africa, and South America.

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.

Product Q&A

Q:Who are we?

We are based in Hunan, China, started from 2019, and sell to South Asia, Mid East, Africa, Southeast Asia, Eastern Asia, North America, Central America, South America, Northern Europe, Western Europe, Domestic Market, Oceania, Eastern Europe, and Southern Europe. There are total about 51-100 people in our office.

Q:How can you guarantee quality?

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

Q:What can you buy from us?

You can buy PDC Drill Bit, Diamond Core Bit, DTH Hammer Bit, Rock Tools, and Drilling Equipment from us.

Q:Why should you buy from us not from other suppliers?

The company has built a high-performance Diamond core bit, DTH hammer bits, hole opener and PDC bit and drilling tools production line with advanced technology, complete equipment and standardized management, and we are drilling bits professional manufacture.

Q:What services can you provide?

Accepted Delivery Terms: FOB, CIF, EXW, Express Delivery. Accepted Payment Currency: USD, EUR, CAD, AUD, GBP, CNY. Accepted Payment Type: T/T, L/C, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow. Language Spoken: English, Chinese, Spanish, French, Russian.