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Diamond Point Bur


Diamond core drills offer several performance advantages due to their design, materials, and intended applications. Here are key performance aspects:

  1. High Precision Cutting: Diamond core drills excel in creating precise and accurate holes in hard materials without causing excessive damage to the surrounding area. This precision is crucial in applications where clean and precise holes are essential, such as in construction, plumbing, or geological exploration.

  2. Efficient Material Removal: The diamond-embedded segments or coatings on the drill efficiently grind through hard materials like concrete, stone, ceramics, and glass. This feature ensures faster and more efficient material removal compared to conventional drill bits, reducing drilling time.

  3. Clean and Smooth Finish: Diamond core drills produce cleaner and smoother hole surfaces. This is particularly important in applications where the appearance of the finished hole is crucial, such as in architectural installations or when working with decorative materials like tiles or stone.

  4. Reduced Chipping and Fracturing: They minimize the risk of chipping or fracturing the material being drilled due to the precision and abrasiveness of the diamond segments. This is vital in preventing material waste and ensuring the integrity of the finished product.

  5. Longevity and Durability: Diamond core drills are highly durable and have a longer lifespan compared to conventional drill bits. The diamond-embedded segments maintain their cutting ability over an extended period, making them a cost-effective choice, especially in industries where continuous drilling operations are common.

  6. Versatility: They can be used on a wide range of hard materials, providing versatility for various applications in construction, manufacturing, geological exploration, and more.

  7. Cooler Operation: Diamond core drills, especially when used with water as a coolant, generate less heat during drilling. This helps prevent overheating of the drill bit and the material being drilled, reducing the risk of damage due to excessive heat.

However, to maximize the performance of diamond core drills, it's essential to use them at the recommended speed, apply appropriate pressure, and use coolant (in wet drilling applications) to ensure efficient cutting and prolong the drill bit's life. Additionally, choosing the right type and size of the diamond core drill bit for the specific material and application is crucial for optimal performance.

Grit Range

Diamond core drill bits are available in various grit ranges, which determine the size and concentration of the diamond particles or segments embedded in the drill bit's cutting surface. The grit range influences the drill bit's performance, cutting efficiency, and the finish it produces while drilling through hard materials.

Here's an overview of diamond core drill grit ranges:

  1. Coarse Grits (Lower Grit Range):

    • Size: Coarse-grit diamond core drill bits typically have larger diamond particles on their cutting surface.

    • Performance: These drill bits are suitable for initial cutting, rapid material removal, and drilling through tougher or harder materials. They excel in tasks where speed and efficiency in removing material are more important than achieving a polished finish.

  2. Medium Grits (Mid-Range Grits):

    • Size: Medium-grit diamond core drill bits have a moderate size range of diamond particles.

    • Performance: They strike a balance between material removal and achieving a relatively smooth finish. These drill bits are versatile and commonly used for various applications where a combination of speed and a reasonably smooth surface is required.

  3. Fine Grits (Higher Grit Range):

    • Size: Fine-grit diamond core drill bits feature smaller diamond particles on the cutting surface.

    • Performance: Ideal for finishing tasks, these drill bits provide a smoother and polished finish while drilling through hard materials. They are used when achieving a high level of precision, smoothness, and minimal surface imperfections are essential.

Choosing the right grit range for a diamond core drill bit depends on several factors:

  • Material Being Drilled: Different materials may require varying grit ranges. Harder materials might benefit from coarser grits for faster cutting, while softer materials may need finer grits to achieve a smoother finish.

  • Required Finish: The desired surface finish influences the selection of the grit range. For rougher cuts where finish quality is less critical, coarser grits might suffice. However, for precision work requiring a smooth and polished finish, finer grits are more suitable.

  • Application Specifics: The specific task or application, whether it's construction, fabrication, or geological exploration, may dictate the appropriate grit range for optimal performance.

It's essential to match the grit range of the diamond core drill bit to the material and the desired outcome of the drilling task to achieve the best results in terms of cutting efficiency and the quality of the drilled hole's finish.


Diamond core drills find widespread application across various industries due to their ability to efficiently drill through hard materials. Here are some key applications where diamond core drills are commonly used:

  1. Construction and Renovation:

    • Drilling Concrete: Diamond core drills are extensively used in construction for drilling holes in concrete walls, floors, and slabs. This includes creating openings for plumbing, electrical wiring, HVAC systems, and installation of anchors.

  2. Geological Exploration:

    • Mining and Geological Sampling: In geology and mining industries, diamond core drills are employed to extract core samples from rock formations. These samples provide valuable geological information for analysis and exploration.

  3. Stone and Masonry Work:

    • Stone Fabrication: Diamond core drills are used in the fabrication of stone countertops, monuments, and sculptures. They're crucial for creating precise holes in granite, marble, and other stone materials.

  4. Glassworking and Ceramics:

    • Glass and Ceramic Drilling: In industries such as glassworking and ceramics, diamond core drills are used for creating holes in glass panels, tiles, porcelain, and other similar materials.

  5. Architectural Applications:

    • Architectural Installations: For architectural purposes, diamond core drills help in installing fixtures, such as sinks, faucets, and decorative elements, by drilling precise holes in hard surfaces without causing significant damage.

  6. Pipeline and Sewer Maintenance:

    • Infrastructure Maintenance: Diamond core drills are used in the maintenance and repair of pipelines and sewer systems, enabling workers to create access points and perform repairs underground.

  7. Laboratory and Research:

    • Scientific Research: In laboratory settings and scientific research, diamond core drills are used to obtain core samples from various materials for analysis and experimentation.

Diamond core drills are essential tools in industries where precision, accuracy, and the ability to drill through hard materials are paramount. They provide clean and accurate holes with minimal damage to the surrounding material, making them invaluable for a wide range of applications across different sectors. The versatility and efficiency of diamond core drills have significantly contributed to advancements in various fields by enabling precise drilling operations on challenging materials.


Diamond core drills are available in a wide range of head sizes, catering to diverse drilling needs across various industries. These drill bits come in different diameters, ranging from as small as 2mm to as large as 200mm and even beyond. The selection of the head size depends on the specific application, material being drilled, and the required hole diameter.

Here's a breakdown of diamond core drill head sizes:

  1. Small Diameter Core Drills (2mm - 10mm):

    • Applications: Small-diameter core drills are utilized for precision drilling tasks requiring small-sized holes. They're commonly used in jewelry making, precision engineering, and fine craftwork on materials like glass, ceramics, and metals.

  2. Medium Diameter Core Drills (11mm - 50mm):

    • Applications: These mid-range core drills cater to various applications in construction, renovation, and manufacturing industries. They're used for tasks such as installing pipes, creating openings for wiring, or drilling holes in concrete, brick, stone, and tiles.

  3. Large Diameter Core Drills (51mm - 200mm+):

    • Applications: Larger diameter core drills are employed in heavy-duty applications in construction, infrastructure development, and geological exploration. They're used for drilling larger holes in concrete walls, slabs, rocks, and other hard materials.

Key Factors for Choosing Head Size:

  • Drilling Purpose: The intended purpose of the hole being drilled—whether for installation, sampling, or precision work—affects the choice of head size.

  • Material Being Drilled: Different materials may require specific head sizes. Harder materials may need smaller-diameter drills for precision, while larger drills might be needed for more robust materials.

  • Equipment Compatibility: The drilling machinery's specifications and capabilities also dictate the feasible range of head sizes that can be used with the equipment.

Diamond core drill bits come in a variety of head sizes to accommodate diverse drilling requirements, offering precision, accuracy, and efficiency in creating holes in hard materials. Selecting the appropriate head size is essential to ensure optimal performance and desired hole dimensions for specific applications.

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Q: How do you use a diamond pad?

A diamond hand pad is a handheld abrasive tool with a flexible surface coated with diamond particles. It is used for grinding, smoothing, and polishing various materials, including stone, concrete, glass, and metal.

Q: How do I choose the right grit size for my project?

Select the grit size based on the initial condition of your workpiece and the desired level of surface finish. Coarse grits are suitable for rough grinding, while finer grits are used for smoothing and polishing.

Q: What safety precautions should I take when using diamond hand pads?

Wear safety goggles, a dust mask, and gloves to protect yourself from dust and debris. Additionally, work in a well-ventilated area or wear a respirator if working with fine dust particles.

Q: How do I maintain and clean my diamond hand pad?

After use, rinse the diamond hand pad with clean water to remove debris and residues. Gently pat it dry or allow it to air dry. Proper maintenance can prolong the pad's lifespan.

Q: What are some common applications for diamond hand pads?

Wear safety goggles, a dust mask, and gloves to protect yourself from dust and debris. Additionally, work in a well-ventilated area or wear a respirator if working with fine dust particles.

Q: What are the common grit sizes for diamond hand pads?

Diamond hand pads come in a range of grit sizes, from coarse (e.g., 50 grit) to fine (e.g., 3000 grit). The choice of grit depends on the specific task, with coarser grits used for material removal and finer grits for polishing.

Q: Do I need to use water or lubricant with a diamond hand pad?

Yes, using water or a specific lubricant is often necessary. It helps keep the surface cool, prevents overheating, and improves the effectiveness of the diamond particles in grinding and polishing. Some materials require dry grinding, so it's essential to check the manufacturer's recommendations.

Q: Can I use a diamond hand pad for dry grinding and wet grinding?

The suitability of a diamond hand pad for dry or wet grinding depends on the material and the pad itself. Some diamond hand pads are designed for wet use, while others are suitable for dry grinding. Check the manufacturer's specifications for guidance.

Q: Can diamond hand pads be used on curved or irregular surfaces?

Yes, diamond hand pads are versatile and can be used on flat, curved, or irregular surfaces. Their flexibility allows for contouring and shaping of various workpieces.

Q: Can I achieve a high-polish finish with a diamond hand pad?

Yes, with the right technique and progression through finer grits, you can achieve a high-polish finish on various materials using diamond hand pads. The finest grits are typically used for the polishing stage.

Diamond Abrasive Products
Diamond Abrasive Products
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