What is the shipping process?

We ship via Commercial Express (UPS, DHL, FedEx, Aramex) or by air, sea, or land. A tracking number is updated within two working days after shipment. We are not responsible for customs charges.

What are the lead times?

Peak season and off-season lead times are both within 15 workdays.

What is the minimum order quantity?

The minimum order quantity is 50 pieces.

1set/8-9PCS Vacuum Brazed Diamond Drill Core Bits Kit Hole Saw Hole Cutter with Box Granite Marble Masonry Drilling Bit

Name: 1set/8-9PCS Vacuum Brazed Diamond Drill Core Bits Kit Hole Saw Hole Cutter with Box Granite Marble Masonry Drilling Bit
Brand: Zhengzhou Rayjie Tools Co., Ltd.
SKU: 2146636732

Henan, ChinaZhengzhou Rayjie Tools Co., Ltd.

US$3.10-3.20

50 Pieces

Product profile

Customization

Available

Customized

Standard

ISO9001

Model NO.

RJ1255

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: Ensures longer working life with less chipping on tiles.

Dry and Wet Cutting: Versatile design allows use in both dry and wet environments.

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

Customizable Grit Sizes: Options include 35/40# and 50/60# grit for different needs.

U-Shaped Chip Grooves: Design provides fast and smooth drilling performance.

20+ Years Experience: Core team has over two decades in diamond tool manufacturing.

OEM and ODM Service: Produce diamond tools with different models or sizes as per request.

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: ≤1.68h 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.

Product Q&A

Q:Who are we?

We are based in Henan, China, started in 2016, with 11-50 office staff. We sell to North America, Western Europe, Mid East, South America, Eastern Europe, Southeast Asia, Northern Europe, Southern Europe, and Oceania.

Q:How can you guarantee quality?

We always produce a pre-production sample before mass production and conduct a final inspection before shipment.

Q:What services can you provide?

We accept delivery terms FOB, CFR, CIF; payment currencies USD, EUR; and payment types T/T, L/C, Credit Card, PayPal, Western Union, Cash. We speak English and Chinese.

Q:Why should you buy from us?

Our core team has over 20 years of experience in the diamond tool business line, with rich experience in manufacturing and supplying various diamond tools while continuously improving technology.

Q:What products can you buy from us?

We produce diamond tools with different models or sizes as per your request, including diamond cutting discs, saw blades, drilling core bits, grinding wheels, and polishing pads.