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7pcs 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-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-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-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）

0102030405

6pcs M14 Dry Vacuum Brazed Diamond Hole Saw

6pcs M14 Diamond Hole Saw Set A - Dry Vacuum Brazed, China Suppliers & Factory for Professional Drilling

Introducing our high-quality products sourced directly from trusted suppliers and manufacturers in China. Our factory adheres to strict quality control standards to ensure that every item meets the highest expectations. With a commitment to excellence, we provide a seamless purchasing experience, offering competitive pricing and reliable delivery. Choose us for your sourcing needs and discover the advantages of working with dedicated suppliers and a reputable factory in China. Experience superior quality and service today!

Brand Name HEYIDA
Model Number M14 HOLE SAW
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 20mm、32mm、40mm、45mm、50mm、68mm
Color black
Manufacturing technology Vacuum Brazed

Product Details

🔍 Product Overview

This is a Black Vacuum Brazed Diamond Drill Core Bit—a high-performance professional tool specially designed for precise drilling on tiles, marble, granite, and various other stone materials. It covers the range of 20mm–68mm 6 components, comprehensively fitting diverse drilling scenarios such as home renovation, construction projects, and stone processing. Crafted with premium materials and advanced technology, this drill core bit stands out in durability, efficiency, and usability, becoming an ideal choice for both professionals and DIY enthusiasts.

⚡ Key Advantages

💧 Dry Drilling (No Water Needed)

The 5–12mm sizes are equipped with built-in high-quality cooling wax. During high-speed rotation, the wax melts to effectively absorb heat, eliminating the need for water cooling. This design simplifies operation, avoids water stains on workpieces and surrounding areas, and makes drilling in narrow spaces or indoor environments more convenient and clean.
🏆 3X Longer Lifespan

Adopting advanced vacuum brazing technology, the diamond particles are firmly fused with the steel body, forming a strong metallurgical bond. This ensures 3–5 times longer durability than standard electroplated drill bits, greatly reducing tool replacement frequency and use cost.
🎯 Precise Drilling

With optimized diamond distribution and high exposure rate, the drill bit achieves fast drilling speed while minimizing chipping and breakage of workpieces. Its excellent heat dissipation performance prevents thermal damage to brittle materials, ensuring smoother and flatter finished surfaces.
🔧 Wide Application

Widely suitable for opening holes in tiles, ceramics, granite, marble, natural stone, concrete walls, and other hard materials—meeting various drilling needs in home decoration, construction engineering, and stone processing fields.

🏗️ Field Application Diagram

📦 Package Options

6 pcs

8 pcs

9 pcs

10 pcs

12 pcs

❓ Frequently Asked Questions

Q What materials can this diamond drill core bit be used on?

This drill core bit is suitable for tiles, ceramics, granite, marble, natural stone, and concrete walls. It is designed to handle a wide range of hard materials used in both residential and commercial construction projects.

Q Do I need water for cooling during drilling?

No. The 5–12mm sizes feature built-in cooling wax that melts during high-speed rotation to absorb heat automatically. This eliminates the need for external water cooling, making the drilling process cleaner and easier—especially in indoor or tight spaces.

Q How does the vacuum brazing technology improve durability?

Vacuum brazing technology creates a strong metallurgical bond between the diamond particles and the steel body. This bond is far more durable than the adhesive layer used in standard electroplated bits, resulting in a lifespan that is 3 to 5 times longer.

Q What size range does this drill bit set cover?

The set covers a drilling diameter range of 20mm to 68mm with 6 components, making it versatile enough to handle various hole sizes required in home renovation, construction, and stone processing applications.

Q Will the drill bit cause chipping or cracking on delicate tiles?

The optimized diamond distribution and high exposure rate allow for precise, controlled drilling that minimizes chipping and surface breakage. The efficient heat dissipation design also protects fragile or brittle materials from thermal damage during drilling.

Q What package options are available for this product?

This product is available in multiple package configurations: 6 pcs, 8 pcs, 9 pcs, 10 pcs, and 12 pcs sets. Each option is packaged in a convenient box suitable for professional use and easy storage.