Diamond Core Drill Bits

Diamond Core Drill Bits for granite, concrete, stone and masonry, with OEM/ODM customization, stable supply, and export support for contractors and distributors.

Special Shaped Vacuum Brazed 45# Grit Diamond Core Drill Bit Tool M14 Shank Porcelain Marble Polish Edge Enlarging Hole JOWIN

$4 /pieces

Price varies depending on material, logo, quantity and customization requirements.

MOQ 5 pieces
Model NO. db-13950
Service OEM / ODM
Quality You Can Trust
Flexible & Scalable Solutions
Customizable Product Options
Comprehensive Specifications
Your Reliable Business Partner

Introduction

useFor Enlarging Shaping Round Bevel Existing Holes of Porcelain Tiledrill typeCore Drill Bit
Total Length65mm(2.56in)finishVacuum Brazed
customized supportOEM, ODMworking length (mm)#
Product nameDiamond contour cutterSize10*25mm 20*35mm
MOQ5 pcsApplication MaterialStoneware, marble, granite, ceramics
ShankM14 5/8-11Diamond Grit45#
PackagePlastic boxColorCustomized Color
Delivery Time9dayCertificationISO9001

We are China Loong Drill Bits Co., Ltd., a professional manufacturer and supplier specializing in Drill Bits. We have brought together and coordinated resources across the Drill Bits supply chain, enabling us to maintain consistent product quality and establish long-term partnerships with clients worldwide.

Our mission is to provide high-quality products and reliable service. We are committed to offering the following advantages:

  • Stable production system ensuring consistent quality, dependable supply, and standardized manufacturing management;
  • Strict quality control covering material selection, processing, surface finishing, and final packaging;
  • Variety of products and specifications to meet diverse project requirements and application scenarios;
  • OEM & customization support based on drawings, samples, or specific technical requirements;
  • Flexible packaging solutions to ensure safe handling and transportation of products;
  • Continuous improvement in products and services to better support customers in different markets.

If you are interested in our products, please feel free to contact us. We look forward to establishing long-term and mutually beneficial cooperation with you.

Copyright © 2026 China Loong Drill Bits Co., Ltd. All rights reserved.
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Special Shaped Vacuum Brazed 45# Grit Diamond Core Drill Bit Tool M14 Shank Porcelain Marble Polish Edge Enlarging Hole JOWIN

SKU: db-13950

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