What shipping methods are available?

We ship via Commercial Express (UPS, DHL, FedEx, Aramex), air, sea, or land as requested. Tracking numbers are updated within two working days.

Is the drill bit suitable for dry use?

Yes, the drill bit can be used for both dry and wet cutting. Adding a little water is recommended to prolong service life, but dry drilling is also effective.

What materials can this drill bit handle?

It is specially developed for superhard materials such as stone, hard tiles, marble, granite, concrete, ceramic tile, glass, and steel.

High-Performance 6-150mm M14 Thread Diamond Core Hole Opener for Porcelain Marble Granite

Name: High-Performance 6-150mm M14 Thread Diamond Core Hole Opener for Porcelain Marble Granite
Brand: Zhengzhou Rayjie Tools Co., Ltd.
SKU: 2154881882

Henan, ChinaZhengzhou Rayjie Tools Co., Ltd.

US$1.60-1.80

2 Pieces

Sample price:US$40.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

ISO9001

Model NO.

RJ6109

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

Customizable Color Options: Available in Gold, Black, Red, Blue, or customized as per your requirement.

Longer Working Life: U-shaped chip grooves and vacuum brazed technology ensure durability and less chipping.

Dry and Wet Cutting: Versatile design allows for both dry and wet drilling to suit various user environments.

High Drilling Capacity: Capable of drilling 150+ holes with high density diamond particles for sharpness.

Professional OEM/ODM Service: We produce diamond tools with different models or sizes as per your specific request.

20+ Years Experience: Core team has over 20 years of rich experience in manufacturing diamond tools.

Fast Response Support: We reply to emails within 24 hours and provide tracking numbers within 2 days.

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: ≤1.66h 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.