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8-1/2 Inch Reverse Circulation Coring Bit of Part of Drilling Tools
US$1.00-8,888.00
1 Piece
Product profile
Customization
AvailableCustomized
CustomizedLength
Jobber-lengthModel NO.
12-1/4 inchType
Core Drill BitMaterial
Tungsten CarbideUsage
Well DrillingAPI Connection(Reg)Pin
Chuan8-3CBS/4CBSWeight on Bit(kN/mm)
20-100Rotary Speed(Rpm)
40-150Primary Cutter Size
16mmTfa(In2)
6-10Gauge Length
2"-3.5"Transport Package
Plywood Box and Ad RequiredSpecification
8-1/2 inchTrademark
RuishiOrigin
China, CangzhouHS Code
820719Production Capacity
20000PC/YearKey features
Real-time Sampling: Reverse circulation mode allows simultaneous sampling and drilling to improve efficiency.
High Wear Resistance: Natural diamond protected gauges significantly increase wear resistance and stability.
High Core Recovery: Specially designed core head ensures high rates of core recovery in various formations.
API Certified Quality: Strictly complies with API Spec7-1 and ISO9001 quality management standards.
Customizable Options: Offers full customization, minor customization, and flexible options based on designs.
Advanced Manufacturing: Equipped with 5-axis machining centers and CNC sintering furnaces for precision.
Optimized Waterways: Optimized waterway design benefits bit cleaning and cooling during operation.
Global Export Experience: Products exported to North America, Europe, Africa, and Middle East with trust.
Company profile
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: ≤4.93h
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.
Product Q&A
Q:Are you a manufacturer or a trade company?
A:
We are a manufacturer, and we can help you find different kinds of products in the Chinese market to match your needs.
Q:Can I have a sample order?
A:
Yes, we welcome sample order to test. Mixed samples are acceptable.
Q:What about the lead time?
A:
Samples within 3 days, big order within 30 days.
Q:Do you have any MOQ limit?
A:
One piece for sample testing is available.
Q:How do you ship the goods and how long does it take to arrive?
A:
We usually send by DHL, UPS, FedEx or TNT. It takes around 3-5 days. Sea shipping also optional.
Send Inquiry
*To:
Hebei Ruishi Bits Manufacturing Co., Ltd
Hebei Ruishi Bits Manufacturing Co., Ltd*Content:
Supplier replies will be sent to your registered email
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