What payment methods do you accept?

TT, Paypal, L/C, Western Union; 30% deposit before mass production, balance against copy of B/L.

How do you handle faulty products?

During the warranty period, we will repair or replace defected products.

Drill-Bit of 8-1/2 Inch API 7-1 Polycrystalline Core Bit for Oil Well Drilling-Tools

Name: Drill-Bit of 8-1/2 Inch API 7-1 Polycrystalline Core Bit for Oil Well Drilling-Tools
Brand: Hebei Ruishi Bits Manufacturing Co., Ltd
SKU: 2137015945

Hebei, ChinaHebei Ruishi Bits Manufacturing Co., Ltd

US$1.00-8,888.00

1 Piece

Product profile

Customization

Available

After-sales Service

Warranty

Model NO.

8-1/2inch

Certification

ISO 9001:2000, ISO 9001:2008, API 7-1

Standard

API 7-1

Surface Treatment

Spray-Paint

Manufacturing Process

Casting

Material

Alloy Steel

API Connection(Reg)Pin

Chuan8-3CBS

Weight on Bit(kN/mm)

10-70

Rotary Speed(Rpm)

40-80

Primary Cutter Size

4*4*4*2.8

Tfa(In2)

0.20-1.50

Flow Rate(Lps)

11-25

Gauge Length

1.5"

Transport Package

Plywood Box and Ad Required

Specification

8-1/2 inch

Trademark

Ruishi

Origin

China, Cangzhou

HS Code

820719

Production Capacity

20000PC/Year

Key features

API 7-1 Certified Quality: Strictly complies with API Spec7-1 and ISO9001 quality management standards.

High Core Recovery Rate: Specially designed core head ensures high rates of core recovery in various formations.

Enhanced Wear Resistance: Inner and outer gauges protected by natural diamond for several-fold increased stability.

Optimized Waterway Design: Benefits bit cleaning and cooling, significantly extending the service life of the bit.

Customizable Specifications: Offers full customization including API connections, rotary speed, and weight on bit parameters.

Versatile Formation Application: Suitable for coring in soft to medium hard abrasive formations like shale, limestone, and sandstone.

Advanced Manufacturing: Equipped with five-axis machining centers and CNC sintering furnaces for precision production.

Comprehensive After-Sales: Provides repair or replacement for defected products during the warranty period.

Company profile

Importers and ExportersYears of Export ExperienceSelf-brandedExhibition Experience

Hebei Ruishi Bits Manufacturing Co., Ltd

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤3.46h

AI-Powered supplier vetting

SummaryHebei Ruishi Bits Manufacturing Co., Ltd. is described as a specialized manufacturer of diamond drill bits and drilling tools, with research, design, manufacturing, sales, and service capabilities. It offers 3D design, OEM, ODM, and multiple customization options. The supplier reports machining, laser cutting, drilling, sawing, wire cutting, and testing equipment, along with documented inspection, quality assurance, corrective-action, and complaint-handling procedures. ISO9001:2015, ISO45001:2018, and ISO14001 certifications are reported. However, it reported no new products in the past year, only two R&D engineers, no overseas agents, branches, warehouse, or showroom, and no valid manufacturing-capacity contract with related subcontractors. Financial information is insufficient for assessment. Customer-case evidence is limited: it reports no Fortune 500 cooperation, while OEM service for well-known brands is claimed without naming customers.

Supplier typeThe supplier identifies itself as a specialized company engaged in the research, design, manufacture, sales, and service of diamond drill bits and drilling tools. This supports classification as a specialized drilling-tool manufacturer rather than a general trading company.

CertificationsReported management-system certifications include ISO9001:2015, ISO45001:2018, and ISO14001. The supplier also reports a product compliance certification category of “Others” and an environmental impact assessment report, but the specific product certification is not identified.

R&D capabilityThe supplier provides 3D software design, ODM, OEM, and several R&D customization services. Nevertheless, it reported no new products in the past year and lists only two R&D engineers, which is explicit evidence of limited recent product-development output.

Production capacityProduction resources include machining, laser cutting, radial drilling, sawing, wire cutting, and universal testing equipment. Documented inspection, quality-assurance, corrective-action, and supplier-assessment procedures are reported, with inventory capability and stated lead times; however, there is no valid manufacturing-capacity contract with related subcontractors.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, flexible customization, 3D software design, ODM, and OEM services for popular brands. These multiple stated service types provide direct evidence of broad customization capability.