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1-3/8 Inch  Vacuum Brazed Diamond  Core Drill Bits for Porcelain
US$6.50
20-49 Pieces
US$6.00
50+ Pieces
Product profile
Customized
CustomizedStandard
SGS,GBLength
60mmModel NO.
CD82Type
Core Drill BitMaterial
DiamondUsage
Masonry Drilling, Ceramic, Porcelain, Stone.Diameter
1-3/8 Inch( 35mm)Total Length
62mmSegment Height
15mmThread
M14 or 5/8"-11Technology
Vacuum BrazedApplication
Wet Drilling or Dry DrillingDelivery Date
15-20daysMOQ
20PCSTransport Package
Aluminum Box PackagingSpecification
35MMTrademark
Johnson ToolsOrigin
ChinaProduction Capacity
10000PCS/MonthKey features
Vacuum Brazed Technology: Superior to electroplating, offering significantly longer lifespan and durability.
High Precision Drilling: Aggressive cutting for ceramic and porcelain with smooth edges and minimal chipping.
Extended Service Life: Capable of drilling more than 30 holes depending on the material type.
Customizable Specifications: Offers customization for diameter, length, segment height, and thread type.
Versatile Application: Suitable for wet or dry drilling in masonry, ceramic, porcelain, and stone.
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: 17 Years CertifiedNearest Port: Shanghai Port, Ningbo, QingdaoAverage Response Time: ≤4.12h
AI-Powered supplier vetting
SummaryThe supplier provides OEM and ODM services and supports extensive customization, including sample-, design-, full-, minor-, and flexible customization. It has 17 years of export experience, self-managed import/export rights, 90% export sales, and accepts multiple trade and payment terms. Production is conducted on one line, supported by 11–20 quality-control staff and stated advanced equipment and checking systems. However, no management-system certifications, SDK, new products in the past year, overseas service facilities, or offline trade-show participation are reported. Service procedures and complaint handling lack written records, and production batches are not continuously reconciled. Financial and cash-flow evidence is limited to year labels, so financial credibility cannot be conclusively assessed.
Supplier typeThe supplier is an OEM/ODM manufacturer with its own factory location, one production line, stated production output, advanced equipment, and a technical workforce. It also provides export services directly through self-managed import/export rights, indicating a manufacturing-oriented supplier rather than a pure trading intermediary.
CertificationsThe supplier’s certification of management systems is explicitly listed as NIL. This is a stated absence of certification evidence and represents a deficiency for this field.
After-Sales capabilityThe supplier has a complaint-handling procedure, but no written records, and it lacks written service-assessment and corrective/preventive-action procedures or records. It also reports no overseas warehouses, showrooms, agents, branches, or offline trade-show participation, limiting documented overseas service support.
R&D capabilityThe supplier provides ODM and broad design customization, but reports no available SDK and no new products during the past year. These explicit limitations outweigh the design-service evidence when assessing demonstrated recent innovation capability.
Production capacityThe supplier reports one production line, 11–20 quality-control staff, advanced production and checking equipment, and flexible export fulfillment with one-month lead times in both peak and off-season. However, it does not continuously reconcile quantities for each batch or mass production, so production controls are not fully documented.
Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also offers ODM services. This is strong direct evidence of broad customization capability.
Product Q&A
Q:What is the difference between vacuum brazed and electroplated bits?
A:
Vacuum brazed technology is superior to electroplating, providing a much longer lifespan for the drill bits.
Q:What materials can these core drill bits be used on?
A:
They are ideal for drilling porcelain, ceramic, tile, masonry, and stone.
Q:Can the drill bits be customized?
A:
Yes, customization is available for diameter, total length, segment height, and thread type.
Q:What is the expected lifespan of these bits?
A:
They can typically drill more than 30 holes, though the exact life depends on the material being drilled.
Q:What is the minimum order quantity?
A:
The minimum order quantity is 20 pieces.
Send Inquiry
*To:
Johnson Tools Manufactory Co., Ltd.
Johnson Tools Manufactory Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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