What is the average lead time for production?

Peak Season Lead Time: one month. Off Season Lead Time: within 15 workdays.

Is customization available for this product?

Yes, size and color are customizable. We also offer OEM and ODM services.

4 Groups of 12 Teeth 3-1/2" Core PDC Rock Drill Bit

Name: 4 Groups of 12 Teeth 3-1/2" Core PDC Rock Drill Bit
Brand: Qidong Fengsu Drilling Tools Co., Ltd.
SKU: 2063094992

Hunan, ChinaQidong Fengsu Drilling Tools Co., Ltd.

US$39.00

1-19 Pieces

US$38.00

20-99 Pieces

US$36.00

100+ Pieces

Product profile

Customization

Available

Type

Core Drill

Usage

Well Drilling, Rock Sampling Geotechnical Engineering

Model NO.

91/89 core

Product Name

Combination Small Teeth PDC Core Bit

Size

Custom

Color

Custom

Connecting Method

Female/ Male Thread

Transport Package

Wooden Case/ Carton

Specification

as needed

Trademark

Origin

Hunan China

Key features

Long Working Life: Designed for very long working life with complete coring rate.

Fast Penetration: Features very fast penetration for efficient drilling operations.

Customizable Options: Size and color are customizable to meet specific needs.

Versatile Usage: Suitable for well drilling, rock sampling, and geotechnical engineering.

Professional Support: Professional geological engineers assist in selecting suitable bits.

Quality Control: ISO9001:2000 certified with strict inspection procedures.

Flexible Payment: Supports T/T, L/C, Western Union, and PayPal payments.

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: ≤18h

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 uses?

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 test our quality.

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 yours.

Q:What are the payment terms, minimum order quantity, 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 the quality?

1. Quality first. In order to guarantee high quality, SEEDMADE always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004. 2. To Build good after-sale service system, we draw up the Quality Guarantee accordingly to the industrial standards combining field experience.