Vacuum Brazed Diamond Core Drill Bit & Heavy Duty Hole Saw for Granite, Porcelain, and Ceramic

Achieve professional-grade precision in your toughest masonry projects with this Vacuum Brazed Diamond Core Bit. Engineered for the rigorous demands of stone and tile fabrication, this industrial-grade hole saw is designed to shear through high-density materials including granite, porcelain, marble, and engineered stone. Featuring an M14 thread connection, it is optimized for high-speed use on angle grinders, delivering fast, smooth penetration with zero edge-chipping. Whether you are installing plumbing fixtures in a kitchen remodel or performing structural stonework, this diamond core bit provides the durability and accuracy required for a flawless finish.

Core Utility & Performance Features

• Vacuum Brazed Technology: Utilizing an advanced vacuum brazing process, the industrial diamond grit is fused directly to the steel core. This ensures maximum diamond retention and heat resistance, allowing for faster cutting speeds and a significantly longer tool life compared to standard electroplated bits.

• Premium Diamond Grit (#35/40): Forged with high-quality coarse diamond grit, specifically calibrated for aggressive drilling in hard-brittle materials. This allows the bit to maintain its "bite" throughout the cut, ensuring a smooth, professional exit without fracturing the tile.

• Versatile M14 Connection: Features a standard M14 female thread, allowing for direct, rock-solid mounting onto most professional angle grinders. With a simple adapter, it can also be used with standard power drills, offering total job site flexibility.

• Dry & Wet Multi-Use: Engineered for high-performance dry drilling in a variety of masonry substrates. While designed to handle high heat, using this bit with water or coolant will further reduce thermal stress and maximize the longevity of the diamond edge.

• Wide Diameter Range: Available in a comprehensive range of sizes from 6mm to 150mm, ensuring you have the exact fit for everything from small anchor holes to large-scale drainage and pipe pass-throughs.

Technical Specifications

• Material: Industrial Grade Diamond (Vacuum Brazed)

• Connection: M14 Thread (Angle Grinder Compatible)

• Grit Size: #35/40 (Coarse/Industrial)

• Total Length: 60mm

• Drilling Diameter: 6mm – 150mm

• Application: Porcelain, Ceramic, Granite, Marble, Stone, and Masonry

• Certification: CE Certified

Snagg It Tip

When starting a hole in high-gloss porcelain or granite with an angle grinder, start the cut at a 45-degree angle to create a "crescent" pilot groove. Once the bit has gained a secure purchase on the surface, slowly bring the tool to a 90-degree vertical position to complete the core. This technique prevents the bit from skidding and damaging the finished surface. To keep your core bits in peak condition, always allow the tool to do the work—avoid applying excessive downward pressure, which can cause the diamonds to "glaze" over. For your service vehicle, we recommend keeping a set of the most common plumbing sizes (20mm, 25mm, 35mm) to ensure you're never caught off guard during a kitchen or bathroom fit-out.