What are the available sizes for the drill bit?

Sizes range from 60mm to 325mm (metric) and 2.5 to 13 inches (imperial), with custom sizes also available.

What strata is this drill bit suitable for?

It is suitable for limestone, dolomite, shale, marble, sandstone, and weathered rock in medium to hard formations.

Do you offer customization options?

Yes, we provide customization from samples and designs, including color and specific processing types.

Large Spout Fs Spiral Core Drill Bit for Hard-Rock Formation Sampling Borehole

Name: Large Spout Fs Spiral Core Drill Bit for Hard-Rock Formation Sampling Borehole
Brand: Qidong Fengsu Drilling Tools Co., Ltd.
SKU: 2079849272

Hunan, ChinaQidong Fengsu Drilling Tools Co., Ltd.

US$47.00

1-19 pieces

US$46.00

20-49 pieces

US$45.00

50+ pieces

Sample price:US$47.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

as Needed

Warranty

as Needed

Model NO.

75mm 91mm 113mm

Certification

ISO 9001:2000, ISO 9001:2008, API

Standard

AISI, ANSI

Surface Treatment

Spray-Paint

Manufacturing Process

Forging

Material

Alloy Steel

Processing Type

Forging

Machine Type

Drilling Tool

Use

Well Drilling

Color

Customized Color

Showroom Location

None

Video Outgoing-Inspection

Provided

Type

Drill Bit

Applicable Industries

Energy & Mining

Product Name

Alloy Steel Spiral Granite Core Bits

Quality

Highquality

Key Words

Mining Drill Top Performance

Application

Geological Exploration

Machinery Test Report

Provided

Transport Package

Wooden Case

Specification

75mm 91mm 113mm

Trademark

SPEEDMADE

Origin

Hunan, China

HS Code

82071300

Key features

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

Wide Size Range: Metric sizes from 60mm to 325mm and Imperial sizes from 2.5 to 13 inches, plus custom sizes.

Multiple Blade Configurations: Available with 2 to 7 blades to suit different drilling conditions.

Versatile Cutter Types: Offers PDC cutters (1005-1916) and Alloy Teeth (YG6-YK15, YK5, YK15).

Patented Anti-Plugging Design: Customized spiral nozzle prevents plugging in pebbles and backfill strata.

High Core Rate Performance: Designed for fast core penetration in medium and hard strata like limestone and shale.

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

OEM and ODM Services: Full customization available from samples or designs with professional manufacturing.

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: ≤15h

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 in 2019, with 51-100 office staff. We sell globally including South Asia, Mid East, Africa, and North America.

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 products can you buy from us?

We offer PDC Drill Bits, Diamond Core Bits, DTH Hammer Bits, Rock Tools, and general Drilling Equipment.

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

We are professional manufacturers with advanced technology, complete equipment, and standardized management for high-performance drilling tools.

Q:What services can you provide?

We accept FOB, CIF, EXW delivery terms and payments in USD, EUR, CAD, etc., via T/T, L/C, PayPal, and more. We speak English, Chinese, Spanish, French, and Russian.