What are the payment terms for bulk orders?

The payment term is 30% advance and 70% balance.

Can the bit be used in dry conditions?

Yes, the vacuum brazed diamond core drill bit supports both dry and wet use.

What is the working speed range of the drill bit?

The working speed ranges from 6000 to 10000 RPM.

Vacuum Drill Bits

Name: Diamond Bits/ Vacuum Hole Saw/ Vacuum Drill Bits
Brand: DONGYAN INTERNATIONAL CO., LTD.
SKU: 747349342

Jiangsu, ChinaDONGYAN INTERNATIONAL CO., LTD.

US$3.20

50-199 Pieces

US$3.00

200-499 Pieces

US$2.95

500+ Pieces

Sample price:US$3.50/piece.Request sample

Product profile

Customization

Available

Customized

Type

Core Drill Bit

Material

Diamond

Usage

Metal Drilling, Masonry Drilling, Glass Drilling

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

Fast Drilling Speed: Drills one hole in just 10 seconds for high efficiency.

Extended Tool Life: Lasts 10 times longer than standard electroplated tools.

Wide Material Compatibility: Cuts ceramic, porcelain, granite, marble, glass, and quartz.

Customizable Color: Color can be customized as per your specific requirements.

Free Sample Offer: Sample cost is free with a production time of 5-7 days.

Flexible Customization: Special applications and designs available upon request.

Dry and Wet Use: Versatile operation suitable for both dry and wet drilling.

High Speed Performance: Operating speed ranges from 6000 to 10000 RPM.

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: ≤15h 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.

Product Q&A

Q:What materials can this vacuum brazed diamond bit drill?

It is designed for high-speed drilling on ceramic, porcelain, granite, marble, glass, quartz, limestone, fiberglass, terracotta, terrazzo, quarry, and vitrified tiles.

Q:How long does it take to drill one hole?

The tool offers fast drilling performance, capable of drilling one hole in just 10 seconds.

Q:What is the lifespan compared to other tools?

This vacuum brazed diamond bit lasts 10 times longer than standard electroplated tools.

Q:Is customization available for this product?

Yes, special applications and designs are available upon request, and the color can be customized as per your requirements.

Q:What are the sample costs and production time?

The sample cost is free. The sample production time is 5-7 days, while bulk orders take 20-25 days.