What is the lead time for bulk orders?

Bulk order time is 20-25 days. Peak season lead time is one month, and off-season is also one month.

Does the product come with a warranty?

We provide free replacement of damaged goods and ensure quality through strict ISO9001-2000 and EN standard inspections.

What certifications does the manufacturer hold?

The factory conforms to ISO9001-2000 quality control systems and holds MPa and BSCI certifications.

China Manufacturer Vacuum Brazed Diamond Core Drill Bit

Name: China Manufacturer Vacuum Brazed Diamond Core Drill Bit
Brand: DONGYAN INTERNATIONAL CO., LTD.
SKU: 862833685

Jiangsu, ChinaDONGYAN INTERNATIONAL CO., LTD.

Negotiable

50 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

ISO2000:9001

Model NO.

DY-01

Length

60mm or Customize

Type

Core Drill Bit

Material

Diamond

Usage

Metal Drilling, Masonry Drilling, Ceramic Tiles

Advantage

Fast Cutting Speed

Color

as Your Requirements

Sample Cost

Free

Sample Production Time

5-7days

Bulk Order Time

20-25days

Payment Term

30% Advance, 70% Balance

Industry Experience

8years

Certificate

MPa, BSCI

Transport Package

Blister Package, White Box

Specification

5-128mm

Trademark

Origin

Jiangsu Province, China

HS Code

8207191000

Production Capacity

100000/Month

Key features

Vacuum Brazed Technology: Designed for extremely hard ceramic tiles with high speed, long life, and excellent efficiency.

Versatile Drilling Capability: Suitable for dry and wet drilling on porcelain, granite, ceramic, marble, metal, and masonry.

Customizable Dimensions: Available in standard 60mm length or fully customized sizes to meet specific project requirements.

Free Sample Service: Provides free samples with a production time of 5-7 days for quality verification before bulk orders.

Fast Cutting Performance: Features very sharp segments for quick start, fast cutting, and handling complicated shapes safely.

ISO Certified Quality: Manufactured under ISO9001-2000 quality control system with strict EN standard process inspections.

Eco-Friendly Design: Environmentally friendly manufacturing process suitable for various diamond grits and grades.

Comprehensive After-Sales: Offers free replacement of damaged goods, free packaging design, and free quality testing services.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExhibition Experience

DONGYAN INTERNATIONAL CO., LTD.

Jiangsu, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤9.24h CertifiedTerms of Payment: T/T, LC, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is a small trading company in Wuxi, China, focused on hardware tools and related product sales. It has five employees, one R&D engineer, no cooperative suppliers reported, and no stated manufacturing capability. Customization is offered across samples, designs, full and minor customization, and the company reported new products during the past year, but it does not provide ODM services or OEM services for popular brands and has no available SDK. Service procedures, complaint handling, and corrective/preventive-action procedures are documented with follow-up records, although the approved-supplier list lacks approval signatures or dates. An audit by TUV Rheinland is reported as valid from June 30, 2026 to June 29, 2027, but the evaluation result is recorded as 0 without interpretation. Quality-assurance and traceability status are unknown, and no quality-control test equipment is reported. Financial records are indicated for 2023–2025, but no financial performance conclusion is possible from...

Supplier typeThe supplier is explicitly identified as a trading company and limited company located in Wuxi, China, with five employees and no reported affiliation with a larger group. Its stated activities center on sales and wholesale of hardware tools, machinery, hardware and electrical appliances, construction materials, and related goods, indicating a small independent trading profile rather than a manufacturing entity.

After-Sales capabilityThe supplier has a documented service-capability assessment procedure with follow-up records, a corrective and preventive action procedure with records, and a clear customer-complaint procedure with follow-up records. However, the approved-supplier list lacks approval signatures or dates; this does not directly negate complaint or service handling, but it indicates an administrative control weakness.

R&D capabilityThe supplier reports at least one new product during the past year and has one R&D engineer, supporting some product-development activity. Nevertheless, it has no available SDK, does not provide ODM services, and the limited staffing indicates only modest documented R&D capacity rather than a strong innovation platform.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. It also reports new products during the past year, although no ODM service, SDK, or detailed engineering resources beyond one R&D engineer are available.