What is the warranty period for the drill bits?

We provide a 1-year warranty for our products.

What materials are used in your drill bits?

Our drill bits are made from 45CrNiMoV material, which is forged to ensure strength and wear resistance.

Hot Sale API 4 1/2 Inch Soft and Medium Hard Stone PDC 3 Wings Blade None Core Water Well Drill Bit

Name: Hot Sale API 4 1/2 Inch Soft and Medium Hard Stone PDC 3 Wings Blade None Core Water Well Drill Bit
Brand: Qidong Fengsu Drilling Tools Co., Ltd.
SKU: 2031293822

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$63.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Warranty

1 Year

Model NO.

91#

Certification

CE, ISO 9001:2008

Standard

AISI, ASME, ANSI

Surface Treatment

Spray-Paint

Manufacturing Process

Forging

Material

45crnimov

Weight (Kg)

2.9

Condition

New

Usage

Exploration

Processing Type

Forging

Machine Type

Hole Rig

Use

Water Well Driller

Name

PDC Drag Bit

Type

Diamond Core Drill Bits

Applicable Industries

Coal Mining and Blast Hole Drilling

Advantage

Wear Resistant

Packing

Carton

Thread Type

Male Female Thread

Application

Wells

Diameter

85mm

Machinery Test Report

Provided

Transport Package

Carton/ Paper Box/ Wooden

Specification

as needed

Trademark

SPEEDMADE

Origin

Hunan, China

HS Code

82071300

Key features

20+ Years Engineering Legacy: Over two decades of successful technology engineering unmatched by other manufacturers.

Custom Color Options: Drill bit color can be customized based on customer requirements.

Wear Resistant Design: 45CrNiMoV material ensures high wear resistance for prolonged drilling life.

100% Quality Inspection: Strict inspection procedures for all products and raw materials to guarantee quality.

Flexible Customization: Full customization, minor customization, and design-based options available.

Multi-Industry Application: Suitable for mineral exploration, geological drilling, and water well construction.

ISO Certified Quality: ISO9001:2000 and ISO9001:2015 certified with rigorous quality guarantee systems.

Fast Delivery Options: Multiple transportation methods including DHL, TNT, FedEx, air, sea, and train.

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:What are your main products and their applications?

Our products include diamond core bits, PDC drill bits, reaming shells, core barrels, casing, drill rods, SPT equipment, drill rigs, and other drilling parts. They are mostly used for mineral exploration, geological drilling, geotechnical engineering, building wells drilling, and soil sampling.

Q:Do you accept sample orders?

Yes, we welcome sample orders to allow you to test our quality before placing larger orders.

Q:Can we select the color of the drill bit?

Yes, we have a standard rock hardness select index to choose drill bit matrix hardness. If you need, we can make the drill bit color based on your requirements.

Q:What are the payment terms, MOQ, and delivery methods?

1. Payment: T/T, L/C, Western Union, Paypal. 2. Min. order quantity: 1 piece. 3. Transportation: By DHL/TNT/Fedex express, air transportation, sea, and train.

Q:How does your company control quality?

Quality is our priority. We conduct serious inspections for all products and raw materials in strict procedures. We obtained ISO9001:2000 certification in 2004 and have a Quality Guarantee system based on industrial standards and field experience.