What is the lead time?

Lead time is within 15 workdays during both peak and off-peak seasons.

What is the minimum order quantity?

The minimum order quantity is 50 pieces.

Can the drill bits be used without water?

Yes, they are designed for dry drilling, though adding water is recommended to prolong service life and ensure smoother cutting.

20 25 30 35mm Vacuum Brazed Core Drill Bits M14 Diamond Stone Drilling Tools for Glass Tile Porcelain Granite Marble

Name: 20 25 30 35mm Vacuum Brazed Core Drill Bits M14 Diamond Stone Drilling Tools for Glass Tile Porcelain Granite Marble
Brand: Zhengzhou Rayjie Tools Co., Ltd.
SKU: 2145587122

Henan, ChinaZhengzhou Rayjie Tools Co., Ltd.

US$1.50-1.60

50 Pieces

Sample price:US$56.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

ISO9001

Model NO.

RJ1565

Length

60mm

Type

Core Drill Bit

Material

Diamond

Usage

Masonry Drilling

Grit

35/40#, 50/60#

Machine

Angle Grinder

Raw Material

Diamond+45mn Steel

Advantage

Dry Using, Longer Working Life

Process

Vacuum Brazed Technology

Color

Gold, Black, Red, Blue, or as Your Requirement

Connection

M14, Hex, Round, 5/8-11, 1/2gas

Feture

Less Chipping on Tiles

Diamond Height

15mm, 10mm, etc

Qty of Holes Drilling

150+ Holes

Transport Package

Paper Box, Plastic, Aluminium Suitcase, etc

Specification

5mm-120mm

Trademark

Rayjie or OEM

Origin

China

HS Code

8207501000

Production Capacity

500000pieces / Month

Key features

Vacuum Brazed Technology: Firmly fixes diamond particles for high density, sharpness, and wear resistance.

Dry and Wet Cutting: Versatile for various environments; adding water prolongs service life.

Customizable Colors: Available in Gold, Black, Red, Blue, or as your specific requirement.

U-Shaped Chip Grooves: Designed for longer working life, fast and smooth drilling performance.

Multi-Material Application: Ideal for drilling glass, tile, porcelain, granite, marble, and concrete.

Durable Diamond Particles: High density and sharpness ensure less chipping on tiles and extended life.

Wide Size Range: Available in 6mm to 100mm diameters with 10mm or 15mm diamond heights.

Professional OEM/ODM: Customize models, sizes, and designs with over 20 years of manufacturing experience.

Company profile

High Repeat Buyers ChoiceIn-stock CapacityCustomization from DesignsR&D Capabilities

Zhengzhou Rayjie Tools Co., Ltd.

Henan, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Designs CertifiedExport Year: 1 Year CertifiedNearest Port: Zhengzhou AirportAverage Response Time: ≤1.02h CertifiedTerms of Payment: T/T, PayPal, Western Union, etc.

AI-Powered supplier vetting

SummaryZhengzhou Rayjie Tools Co., Ltd. describes itself as a professional manufacturer and supplier of diamond tools, with claimed experience, production equipment, quality controls, and a complete industrial chain. It reports SGS certification and customization from designs. Export activity is stated at 90% of total sales, but the supplier began exporting only one year ago and has no overseas showrooms, agents, branches, or offline trade-show participation. After-sales service is included in its industrial chain, yet documented service procedures are unavailable. Innovation evidence is weak: no new products were introduced in the past year, and ODM, SDK, and well-known-brand OEM services are unavailable. Reported financial figures are all zero, so financial credibility cannot be positively established from the provided information.

Supplier typeThe supplier explicitly identifies itself as a professional manufacturer and supplier specializing in diamond tools. Its stated activities cover design, mold development, procurement, processing, inspection, and after-sales service, supporting classification as an integrated manufacturer rather than only a trading intermediary.

CertificationsThe supplier states that it has passed authoritative SGS certification and maintains quality control from raw-material inspection through delivery. It also reports an independent trademark and standardized brand operation system, although no certificate scope or validity details are provided.

R&D capabilityThe supplier states that it introduced no new products during the past year and does not provide ODM services or an available SDK. Although it describes itself as engaged in R&D and production, the explicit recent innovation indicators show limited demonstrated innovation capability.

Production capacityThe supplier reports a complete industrial chain, advanced production lines, precision testing instruments, mature processing technology, and quality controls covering production through delivery. These statements explicitly support production capability, though no capacity, output, or equipment quantities are provided.

Customization capabilityThe supplier explicitly offers customization from customer designs. This supports design-based customization, but the provided information does not establish the scope, technical limits, tooling process, or delivery performance of customized orders.