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7pcs Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw

7pcs Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw
5pcs Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw 

5pcs Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw 
3pcs-16 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw （SET G）

3pcs-16 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw （SET G）
3pcs-14 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET F）

3pcs-14 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET F）
3pcs-12 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET E）

3pcs-12 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET E）
3pcs-10 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET D）

3pcs-10 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET D）
3pcs-8 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET C）

3pcs-8 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET C）
3pcs-6 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET B）

3pcs-6 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET B）
3pcs-5 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET A）

3pcs-5 Vaccum Brazed Diamond Dry Drill Bit Hex Handle Hole Saw  （SET A）
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8pcs M14 Dry Vacuum Brazed Diamond Hole Saw Set for Tile, Marble, Granite - China Suppliers and Factory

Introducing our premium 6mm-120mm M14 Dry Vacuum Brazed Diamond Drill Core Bits, specifically designed for efficient drilling in tile, marble, granite, and stone. As a reliable China supplier and factory, we ensure our tools provide superior performance and durability. These hole saw tools feature a unique vacuum brazed technology that enhances cutting speed and precision, making them perfect for both professional contractors and DIY enthusiasts. Upgrade your drilling experience with our high-quality diamond drill bits, trusted by professionals worldwide
  • Brand Name HEYIDA
  • Origin Mainland China
  • Type Core Drill Bit
  • Material Diamond
  • Length 60mm
  • DIY Supplies Tiling
  • Use Masonry Drilling
  • Measurement unit piece/pieces
  • Each pack 1
  • THREAD M14 THREAD
  • Machine M14 Angle Grinder
  • Specification 6mm-120mm
  • Color Blue
  • Manufacturing technology Vacuum Brazed
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Product Details

Product Overview

M14 Blue Vacuum Brazed Diamond Core Drill Bits: High-Performance Dry Drilling Solution

Our M14 Blue Vacuum Brazed Diamond Core Drill Bits are professional-grade drilling tools engineered for precision and durability across a wide range of hard materials. Crafted with high-quality diamond particles and steel substrates, these bits feature a standard M14 thread that is universally compatible with most angle grinders on the market, ensuring easy and stable installation for both professionals and DIY enthusiasts.

Available in 32 precise sizes from 6mm to 120mm, this series covers nearly all drilling needs for home renovations and industrial projects. Each bit has a total height of 60mm with a 15mm diamond working layer, optimized for consistent drilling depth and efficiency. The striking blue coating not only enhances corrosion resistance but also allows for easy identification on job sites.

The core advantage lies in its advanced vacuum brazing technology, which creates an ultra-strong bond between diamonds and the steel body. This technology delivers 3 to 5 times longer service life than traditional electroplated bits, with industry data showing it can drill over 40 clean holes in hard porcelain tiles before needing replacement. It also ensures a high diamond exposure rate, enabling faster, more aggressive drilling while minimizing heat generation and material chipping.

⚡ Dry Drilling Capability: No water cooling required. For smaller sizes (6mm–12mm), an integrated wax core provides automatic cooling during operation, preventing overheating and extending tool life.

These bits are ideal for drilling precise, chip-free holes in ceramic tiles, granite, marble, natural stone, pebbles, and concrete walls, making them a cost-effective and time-saving solution for tiling, plumbing, and masonry projects.

Product Descriptions
Material Diamond
Total Height 60mm
Diamond Height 15mm
Available Sizes 6mm / 8mm / 10mm / 12mm / 14mm / 16mm / 18mm / 20mm / 22mm / 25mm / 28mm / 30mm / 32mm / 35mm / 38mm / 40mm / 42mm / 45mm / 50mm / 55mm / 60mm / 65mm / 68mm / 70mm / 75mm / 80mm / 85mm / 90mm / 95mm / 100mm / 110mm / 120mm
Features
  • 1Dry drilling without water feeding — 6mm–12mm bits with wax inside help cool the bits during operation
  • 2Wide application for drilling tile, ceramic, granite, marble, stone, and more
  • 3Vacuum Brazed technology provides much longer working life than electroplated ones (generally 3–5 times longer)
  • 4Less chipping, minimized breakage, less heat generation, and better finish quality
  • 5High diamond exposure rate provides faster and more aggressive drilling performance
  • 6Save your money and time — a cost-effective long-term solution for professionals and DIYers
🔩 Application: Used for opening holes in marble, ceramic tiles, granite, pebbles, walls, and other hard materials.
📦 Package Includes: 1 × Diamond Drill Core Bit

⚠ Note:

1. Due to manual measurement, please allow 1–3mm error. Thank you.

2. Due to shooting conditions such as lighting, there may be slight color differences. Please be aware.

Tool Demonstration Images
M14 Blue Vacuum Brazed Diamond Core Drill Bit - Product View
M14 Blue Vacuum Brazed Diamond Core Drill Bit - Scene Photo
M14 Diamond Core Drill Bit - Application Demo
M14 Dry Vacuum Brazed Diamond Hole Saw - Detail View 1
M14 Dry Vacuum Brazed Diamond Hole Saw - Detail View 2
Frequently Asked Questions
Q What materials can the M14 Blue Vacuum Brazed Diamond Core Drill Bits be used on?
These drill bits are suitable for a wide range of hard materials including ceramic tiles, granite, marble, natural stone, pebbles, concrete walls, and other masonry surfaces. They are ideal for both home renovation and professional construction projects.
Q Do these drill bits require water cooling during use?
No, these bits are designed for dry drilling and do not require water cooling. For smaller sizes (6mm–12mm), an integrated wax core inside the bit automatically provides cooling during operation, preventing overheating and extending tool life.
Q What thread size do these drill bits use, and are they compatible with my angle grinder?
These bits feature a standard M14 thread, which is universally compatible with most angle grinders available on the market. This ensures easy and secure installation without the need for additional adapters in most cases.
Q How long do vacuum brazed diamond bits last compared to electroplated bits?
Vacuum brazed diamond bits typically last 3 to 5 times longer than traditional electroplated bits. Industry data indicates these bits can drill over 40 clean holes in hard porcelain tiles before needing replacement, making them a more cost-effective long-term investment.
Q What sizes are available in this series?
This series offers 32 precise sizes ranging from 6mm to 120mm: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm, 38mm, 40mm, 42mm, 45mm, 50mm, 55mm, 60mm, 65mm, 68mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, 100mm, 110mm, and 120mm, covering virtually all drilling requirements.
Q Will these bits cause chipping or cracking on delicate tile surfaces?
These bits are engineered to minimize chipping and breakage. The vacuum brazing technology ensures a high diamond exposure rate, which allows for cleaner, smoother cuts with reduced heat generation. This results in better finish quality and significantly less risk of cracking on ceramic tiles, marble, and other delicate surfaces.