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Diamond Core Bits for Stone and Concrete
US$5.80-185.00
50 Pieces
Sample price:US$5.80/piece.Request sample

Product profile

Customized

Customized

Standard

SGS

Length

Drill Stone and Concrete

Model NO.

15.1

Type

Core Drill Bit

Material

Diamond

Usage

Masonry or Concrete

Manufacturing Arts

Welding

Kind

Diamond Drill

Graininess

#30/40

Brand

Johnson Tools

Saw Blade External Diameter

6.5-250mm

Outer Diameter

6.5-250mm

Transport Package

Carton

Specification

GB

Trademark

Johnson Tools

Origin

China

HS Code

8207501000

Production Capacity

1000PCS/Month

Key features

Customizable Size: Outer diameter ranges from 6.5-350mm and can be customized to meet specific project requirements.
Premium Diamond Quality: High-grade diamond core bits deliver fast drilling speed and extended product life for various materials.
Versatile Material Compatibility: Effectively drills concrete, bricks, granite, marble, ceramic, tiles, glass, and porcelain.
Fast Delivery Options: Shipment takes around 15 days if steel body is in stock, otherwise 20-30 days.
SGS Certified Quality: Products hold SGS and MPA certificates, ensuring high manufacturing standards and reliability.
Flexible Payment Terms: Accepts T/T, Irrevocable L/C at sight, PayPal, Western Union, and Credit Card.
Global Export Experience: Exported to over 70 countries with rich production experience since 2000.

Company profile

Johnson Tools Manufactory Co., Ltd.
Years of Export ExperiencePatents AwardedFast DeliveryOEM Services
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: ≤4.42h

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 materials can these diamond core bits drill?
A:
They are used to drill concrete, bricks, granite, marble, ceramic, tiles, glass, and porcelain.
Q:What is the delivery time for orders?
A:
If steel body is in stock, shipment is around 15 days. Otherwise, it usually takes 20-30 days.
Q:What payment methods are accepted?
A:
We accept T/T, Irrevocable L/C at sight, PayPal, Western Union, and Credit Card.
Q:Can the size of the core bits be customized?
A:
Yes, the outer diameter ranges from 6.5-350mm and can be customized according to customer requirements.
Q:How do I place an order?
A:
Provide product details, size, specifications, material, machine HP, quantity, and nearest port. We will then issue a Proforma Invoice.

Send Inquiry

*To:Johnson Tools Manufactory Co., Ltd.Johnson Tools Manufactory Co., Ltd.
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