M14 Brazed Diamond Core Drill Bit – Stone Marble Granite

M14 Brazed Diamond Core Drill Bit – Angle Grinder Hole Saw for Stone, Marble & Granite

Tackle any masonry drilling project with confidence using this professional-grade M14 Brazed Diamond Core Drill Bit. Engineered for use with 115, 125, and 180mm angle grinders, this precision tool delivers fast, smooth, and clean hole openings in some of the hardest materials — marble, granite, concrete, ceramic tile, glass tile, quartz, cobblestone, and more.

Whether you're a seasoned tradesperson or a dedicated DIY enthusiast, this core drill bit's brazed diamond construction ensures exceptional durability, minimal chipping, and a superior finish on every cut. Made in Mainland China.

Key Features

• Fast & Smooth Drilling: Brazed diamond tip cuts efficiently through hard stone surfaces with minimal effort.
• Long Service Life: High-quality diamond bonding extends the lifespan of the bit significantly versus conventional alternatives.
• Less Chipping: Precision-engineered geometry minimizes edge breakage for a clean, professional finish.
• Reduced Heat Generation: Suitable for both dry and wet drilling, keeping material and tool temperature controlled during use.
• Less Material Loss: Optimized cutting action reduces wastage and improves overall efficiency on the job.
• Better Finish Quality: Smooth bore results mean less post-drilling cleanup or rework.

Specifications

What's in the Box

• 1 × M14 Brazed Diamond Core Drill Bit (diameter of your choice)

Compatible Tools

This drill bit features a standard M14 threaded connection, compatible with most 115mm, 125mm, and 180mm angle grinders. An adapter to change the threaded rod is also available — contact us for details.

Related Tools & Accessories

Looking for more precision tools for your projects? Check out our Leather Hole Punch Tool | DIY Stitching Punch 4/5/6mm or our Stainless Steel Ceramic Trimming Tool – Curved Skip Knife for complementary workshop essentials. Need to store your bits and accessories neatly? Our Airtight Transparent PET Storage Bottle is perfect for keeping small parts organised.

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Frequently Asked Questions

Q: What angle grinder sizes is this M14 core drill bit compatible with?

A: This brazed diamond core drill bit features an M14 thread connection, making it compatible with 115mm, 125mm, and 180mm angle grinders. An adapter is also available if you need to use a different threaded connection.

Q: Can this diamond core drill bit be used for both dry and wet drilling?

A: Yes! This drill bit supports both dry and wet drilling methods. Using water during drilling helps manage heat buildup and further extends the life of the diamond tip, especially when working on dense materials like granite or thick concrete.

Q: What materials can this brazed diamond core drill bit cut through?

A: This drill bit is designed for masonry and hard stone applications including marble, granite, concrete, cobblestone, ceramic tile, glass tile, quartz, and glass. Its P36 medium grit and brazed diamond construction make it highly effective across all of these surfaces.

Q: What diameter sizes are available for this core drill bit?

A: The outer diameter is available in a wide range of sizes: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 68mm, 70mm, 75mm, and 80mm — so you can choose the exact size needed for your project.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.