Marble Drill Bits

Marble Drill Bits for drilling marble, granite and ceramic tiles, suited to builders, distributors and project buyers. OEM/ODM available for sizes, shanks and packaging, with stable supply and consistent production control.

Factory Direct Diamond Core Drill Bits, 25-30mm, for Concrete, Cement, and Stone Coring and Drilling

$3.70-4.50 /piece

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

MOQ 1 piece
Model NO. db-6033
Service OEM / ODM
Quality You Can Trust
Flexible & Scalable Solutions
Customizable Product Options
Comprehensive Specifications
Your Reliable Business Partner

Introduction

useMasonry Drillingdrill typeCore Drill Bit
Shank Diameter25/27/30mmTotal Length370mm(14.57in)
finishPlaincustomized supportOEM, ODM, OBM
Shank Type1/2 gas, M14, M12, M22,5/8"-11,1 3/4 threadProduct nameDiamond core bit for concrete
ColorColors are random. Colors can be specified for large orders.MOQ100pcs
Size25~30mmApplicationengineering drill, air conditioning hole, sewer hole, hood hole, et
FeatureHigh Speed.Straight Smooth EdgeTechnologyHigh-frequency Welding
Advantagehigh speed,long life and high qualityOEM500PCS
PackingCorrugated Box

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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Factory Direct Diamond Core Drill Bits, 25-30mm, for Concrete, Cement, and Stone Coring and Drilling

SKU: db-6033

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