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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

8pcs M14 Dry Vacuum Brazed Diamond Hole Saw (Set B)

8pcs M14 Dry Vacuum Brazed Diamond Hole Saw Set B - Quality from China Suppliers and Factory

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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、25mm、32mm、35mm、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 a full size range from 6mm to 130mm, 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 LIFESPAN Longer Durability

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 Clean & Accurate Results

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 Versatile Use

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

6pcs

8pcs

9pcs

10pcs

12pcs

? Frequently Asked Questions

Q What materials can the Black Vacuum Brazed 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 home decoration, construction engineering, and stone processing.

Q Do the smaller sizes (5–12mm) really require no water cooling during use?

Yes. The 5–12mm sizes feature built-in high-quality cooling wax. As the bit rotates at high speed, the wax melts and absorbs the generated heat, effectively replacing the need for external water cooling. This makes them especially convenient for indoor use or tight spaces.

Q How much longer does a vacuum brazed diamond bit last compared to standard electroplated bits?

Thanks to the advanced vacuum brazing technology that creates a strong metallurgical bond between the diamond particles and the steel body, these bits offer 3 to 5 times longer lifespan than conventional electroplated drill bits, significantly lowering replacement costs.

Q What size range does this drill core bit cover?

The drill core bit is available in a full range from 6mm to 130mm, making it versatile enough to accommodate virtually any drilling scenario from small fixture holes to larger openings required in construction projects.

Q Will this bit cause chipping or cracking when drilling brittle materials like tiles or marble?

The optimized diamond distribution and high exposure rate allow for fast cutting while minimizing chipping and breakage. The excellent heat dissipation also prevents thermal damage to brittle materials, ensuring clean, smooth, and accurate holes.

Q What package options are available for this product?

The Black Vacuum Brazed Diamond Drill Core Bit is available in multiple set configurations: 6pcs, 8pcs, 9pcs, 10pcs, and 12pcs kit options. Each package is boxed for easy storage and transport, suitable for both professional contractors and DIY users.