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Lapidary Faceting Head Mast Arm

Lapidary and Faceting Equipment
Lapidary  Faceting Equipment

Lapidary Gemstone Jade Jewelry tools Faceting Machine Arms Gemstone faceting mechanical arm Head gemstone polishing arm:gem Faceting Machine Grinding Faceted manipulator Head jewels playing angle flat mill polishing stone angles 96 index wheels handle , it is complete set as below first picture, option is for choosen the degree.

New Faceting Machine Mast, We Assembly with course and fine height adjustment and 96 index. The mast is 11" tall and the quill assembly is 7 1/4 inches long and accepts 6mm dop sticks. Many thousands of stones are cut commercially every day with this type of heavy duty and easy to use machine. This is the machine that is used to cut the better quality commercial stones.

For commercial production cutting or hobby faceting or that graduation gift for your daughter and the anniversary gift for the wife this is a great affordable machine.This machine does not come with a motor or base, it requires your motorized base.

Faceting Head or Mast:

  1. Mast or Arm: The mast or arm is a vertical or angled post that supports the faceting head. It is typically adjustable in height and angle to provide versatility in faceting gemstones.

  2. Faceting Head: The faceting head is attached to the mast or arm and holds the gemstone during the cutting and polishing process. It can be rotated to various angles and positions to align the gemstone with the cutting wheel.

  3. Dop Stick: Gemstones are mounted onto dop sticks, which are secured to the faceting head. These sticks hold the gemstone in place while allowing for precise adjustments in rotation and angle.

  4. Angle Indicators: Many faceting heads have angle indicators or scales that help lapidaries set the desired angles for each facet. This ensures uniform and precise faceting.

  5. Index Gears: Index gears on the faceting head allow lapidaries to rotate the gemstone to different positions for cutting and polishing different facets.


Faceting heads and masts are essential for precision gemstone cutting and faceting. Here's how they are used:

  1. Faceting: Lapidaries use the faceting head and mast to hold the gemstone at specific angles while grinding and polishing facets. Each facet must be cut at the correct angle and orientation to maximize the gem's brilliance and sparkle.

  2. Angle Adjustment: The adjustable mast and faceting head allow lapidaries to set and fine-tune the angles at which they cut each facet. This precision is critical for achieving desired gemstone shapes and optical properties.

  3. Rotation: The ability to rotate the gemstone ensures that facets are evenly distributed around the gem's circumference, creating a well-proportioned and symmetrical appearance.

  4. Facet Alignment: The faceting head's angle indicators and index gears help lapidaries maintain consistent facet alignment, ensuring a professionally cut gemstone.

  5. Polishing: After the initial cutting, the faceting head is used to hold the gemstone in place while the lapidary polishes each facet to a high luster.

Faceting machines equipped with adjustable faceting heads and masts are used by lapidaries and gemstone cutters to create gemstones with precision-cut facets. The ability to control angles, rotation, and alignment is crucial in achieving the desired appearance and value in faceted gemstones.


CBN (Cubic Boron Nitride) diamond wheels for knife sharpening offer exceptional performance when it comes to sharpening and honing knife blades. Key performance aspects of CBN diamond wheels for knife sharpening:

  1. Efficient Sharpening: CBN wheels are highly efficient at removing metal from the knife blade, making the sharpening process quicker than many other methods. This is especially beneficial when restoring dull or damaged knife edges.

  2. Consistent Results: CBN wheels provide consistent and repeatable sharpening results. They maintain their shape and sharpness over time, ensuring that knives are consistently sharpened to the desired angles and profiles.

  3. Sharpness: CBN wheels are capable of achieving extremely sharp knife edges. Whether you need a fine edge for delicate slicing or a durable edge for heavy-duty cutting, CBN wheels can accommodate various sharpness requirements.

  4. Longevity: CBN wheels have a long service life due to their exceptional hardness. They wear down slowly, reducing the frequency of wheel replacement, which is cost-effective in the long run.

  5. Cool Cutting: CBN wheels operate at cooler temperatures compared to some abrasive sharpening methods. This prevents overheating of the knife blade, which can lead to damage, and ensures that the blade's temper or hardness is preserved.

  6. Versatility: CBN wheels are versatile and can be used to sharpen a wide range of knives, including kitchen knives, hunting knives, pocket knives, and more. They can also handle both straight-edge and serrated blades.

  7. Clean Sharpening: CBN wheels generate fewer dust and particles during sharpening compared to traditional abrasive wheels, resulting in a cleaner and safer working environment.

  8. Reduced Maintenance: Due to their long lifespan and minimal wear, CBN wheels require less dressing and maintenance compared to abrasive sharpening wheels.

  9. Bevel Angle Control: CBN wheels can help maintain consistent bevel angles, ensuring that knives are sharpened to the desired angles for optimal cutting performance.

  10. Fine Edge Maintenance: CBN wheels are suitable for honing and maintaining the sharpness of high-quality knives, ensuring that the edges remain in top condition for a long time.

  11. Professional Results: Whether used by professional chefs, knife sharpening services, or hobbyists, CBN diamond wheels consistently deliver professional-quality sharpening results.

Grit Range

CBN (Cubic Boron Nitride) diamond sharpening wheels come in various grit ranges to accommodate different sharpening needs and applications. The choice of grit size depends on the type of cutting tool or material you are sharpening and the desired level of sharpness or finish.General overview of common CBN sharpening wheel grit ranges:

  1. Coarse Grit (80 to 180):

  2. Coarse-grit CBN wheels are used for rapid material removal and reprofiling of tools.

  3. Suitable for sharpening heavily damaged or dull tools.

  4. Commonly used for shaping and rough sharpening.

  5. Medium Grit (220 to 400):

  6. Medium-grit CBN wheels provide a balance between material removal and sharpening precision.

  7. Ideal for general-purpose sharpening of tools, including turning tools, chisels, and drill bits.

  8. Suitable for restoring the cutting edge on moderately worn tools.

  9. Fine Grit (600 to 1,000):

  10. Fine-grit CBN wheels are used for achieving a sharp cutting edge with a smooth finish.

  11. Suitable for sharpening and honing woodworking tools, lathe tools, and carving tools.

  12. Ideal for maintaining the sharpness of tools without significant material removal.

  13. Extra Fine Grit (1,200 and above):

  14. Extra fine-grit CBN wheels are used for achieving an extremely sharp and polished edge.

  15. Commonly used for honing and polishing fine woodworking tools, knives, and blades.

  16. Ideal for achieving a mirror-like finish on the cutting edge.


The performance of a Lapidary Faceting Head Mast Arm is crucial to the precision and quality of gemstone faceting. The performance of this component is evaluated based on its ability to facilitate precise cutting and polishing of gemstones. Here are key performance aspects:

  1. Stability and Rigidity: The mast arm should be stable and rigid to securely hold and position the gemstone during faceting. It should not flex or wobble, ensuring that the gemstone remains in the desired position throughout the cutting and polishing process.

  2. Angle Control: The mast arm should allow for precise control of the angle at which the gemstone is presented to the cutting wheel or lap. This angle control is essential for creating facets at the correct angles to maximize the gemstone's brilliance.

  3. Rotation Control: It should provide smooth and accurate rotation control, allowing the faceter to turn the gemstone to cut and polish different facets with precision. The ability to make fine adjustments in rotation is important for achieving symmetry.

  4. Ease of Use: A well-designed mast arm should be user-friendly, enabling lapidarists to easily adjust and fine-tune the position of the gemstone. Smooth and intuitive controls contribute to efficient and effective faceting.

  5. Compatibility: The mast arm should be compatible with different types of faceting machines and equipment. Compatibility ensures that lapidarists can use it with their preferred faceting setup.

  6. Durability: Long-lasting performance is essential. The mast arm should be made from durable materials and built to withstand the wear and tear associated with gemstone faceting.

  7. Precision: Precision is the hallmark of a high-performance mast arm. It should allow for the creation of accurately sized and aligned facets, contributing to the gemstone's overall quality.

  8. Versatility: A versatile mast arm can accommodate various gemstone shapes and sizes, as well as different cutting and polishing laps or wheels. This versatility allows lapidarists to work with a wide range of gemstone types.

  9. Safety: The mast arm should include safety features that protect the user and the gemstone during faceting. Safety shields and guards are common additions to ensure safe operation.

  10. Consistency: The mast arm's performance should be consistent, providing reliable results from one facet to the next. Consistency in cutting and polishing is crucial for achieving a balanced and symmetrical gemstone.

  11. Fine Adjustments: The ability to make fine adjustments is important for achieving precise facet angles and sizes. The mast arm should allow for minute changes when needed.

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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.

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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.

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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.

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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.

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