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Item #:
12674972
50pcs 1/8'' Shank Diamond Rotary Grinding Bit Jewelry Lapidary Burr Set Polishing Buffing Bits Compatible with Most Rotary Tool Accessories Attachment
Item #:
12674972
XCD 87
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Preamer 50pcs Diamond Rotary Grinding Bit is a versatile product that can be used on various materials including metal, glass, stone, and hardwood.
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What Stands Out
Versatile Compatibility
Designed to work seamlessly with most rotary tools, ensuring buyers can easily integrate these grinding bits into their existing toolsets without needing specific adapters or equipment.
Comprehensive Set
Includes 50 pieces, providing a wide range of shapes and sizes, catering to various detailing needs, which reduces the need for multiple purchases and enhances convenience for jewelers and hobbyists.
High Durability
Crafted with diamond coating for lasting performance, these bits are built to withstand heavy use while maintaining effectiveness, offering exceptional value and longevity compared to standard grinding bits.
Product Details
- Set of 50 diamond coated rotary grinding heads/burrs with 150 grits, suitable for most rotary tools
- Includes various shapes such as cylinder, sphere, needle, flat plate, etc., for abrasive, engraving, cutting, polishing, carving, and etching
- Can be used for grinding the edge of glass, tile, marble, jewelry, or rock, and suitable for stone, glass, metal, hardwood, tile, ceramics, marble, granite, and other hard materials
- Shank size: 3mm (close to 1/8), compatible with most major rotary machine brands, with a speed range of 8000-30000 rpm
- Multi-purpose diamond grinding head burr set suitable for small projects like sculpturing, precision grinding, shaping bonsai trees, etc.
- Comes with additional accessories such as rotary steel wheel wire brush set, cut-off wheel holder, sandpaper, wool felt buffing wheel, and diamond-tipped coated mount point
Product Technical Details
| Package Dimensions | 4.09 x 3.7 x 2.2 inches |
| Item Weight | 8 ounces |
| Manufacturer | Preamer |
| Item model number | PR-28414 |
Who Should Buy?
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Jewelry Makers
Ideal for artisans crafting custom jewelry pieces requiring precise shaping and polishing with rotating tools.
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Hobbyists
Perfect for DIY enthusiasts engaged in various crafting projects involving intricate designs and material finishing.
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Lapidary Professionals
Great for lapidary artists needing reliable burrs for cutting and refining stones, enhancing their final creations.
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Heavy Duty Users
Not suitable for users needing high durability under extreme pressure or continuous grinding tasks.
Product Description
About This Item
Introducing the Preamer 50pcs 18" Shank Diamond Coated Rotary Grinding Head Jewelry Lapidary Burr Set - the ultimate tool for all your polishing and buffing needs! With the largest head size of 16mm (close to 5/8") and the smallest head size of 2.3mm (close to 3/32"), this burr set is designed to tackle a wide range of tasks. From intricate jewelry designs to lapidary projects, this set is compatible with most rotary tool accessories attachment, making it a must-have for any DIY enthusiast or professional jeweler. The diamond sands on these grinding heads are of grit 150, providing a coarse grit for efficient and precise grinding. Say goodbye to uneven surfaces and hello to smooth, polished finishes that will make your projects shine. Crafted with durability and longevity in mind, the Preamer diamond coated grinding heads are designed to withstand heavy use.
The diamond coating ensures superior performance and allows for extended usage without losing efficiency. Whether you're a jewelry maker, lapidary artist, or simply enjoy DIY projects, this burr set is the perfect addition to your toolbox. From grinding and shaping to polishing and buffing, these versatile heads will help you achieve professional-quality results every time. Don't settle for subpar tools that won't deliver the desired results. Invest in the Preamer 50pcs 18" Shank Diamond Coated Rotary Grinding Head Jewelry Lapidary Burr Set and take your projects to the next level.
Shop now and experience the difference!.
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Customer Questions & Answers
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Question:
What materials can the 50pcs 1/8'' Shank Diamond Rotary Grinding Bits be used on?
Answer: These diamond rotary grinding bits are versatile and can be used on various materials, including metals, ceramics, glass, and stones. Their hard diamond coating allows for effective grinding and polishing without damaging the workpiece. For instance, they are ideal for jewelry making and lapidary work, enabling detailed designs and smooth finishes on precious metals and gemstones. -
Question:
How do I use the diamond rotary grinding bits with my rotary tool?
Answer: Using the diamond rotary grinding bits with your rotary tool is straightforward. Simply insert the 1/8'' shank into the collet of your rotary tool and tighten it securely. After setting the speed according to the material requirements, you can start grinding or polishing. These bits are especially effective for shaping and finishing, making them invaluable for crafts such as jewelry design. -
Question:
Can I use these bits for detailed engraving work?
Answer: Yes, the diamond rotary grinding bits are excellent for detailed engraving work due to their precision and durability. You can achieve intricate designs on various surfaces. Their varying shapes, such as cylindrical and pointed bits, allow you to select the best tool for detailed engraving tasks, making them perfect for personalizing jewelry or creating artwork. -
Question:
Are the bits suitable for both beginners and professionals?
Answer: Absolutely, this diamond rotary grinding bit set is suitable for both beginners and professionals. Whether you're just starting with crafting or you're an experienced artisan, the diverse range of bits offers a user-friendly experience. Beginners can practice simple grinding techniques, while professionals can rely on the quality and versatility for complex projects. -
Question:
How do I maintain the rotary grinding bits for long-lasting use?
Answer: To maintain the longevity of your diamond rotary grinding bits, it’s important to clean them after use. Remove residue with a soft brush or cloth, and store them in a dry place. Avoid using them on materials that can clog the diamond surface. With proper care, these bits will retain their effectiveness, allowing for consistent performance across various projects. -
Question:
What types of projects are these bits ideal for?
Answer: These diamond rotary grinding bits are ideal for a variety of projects, including jewelry making, engraving, and model building. Their ability to grind, shape, and polish makes them perfect for crafting intricate designs in metals and stones. Whether you are creating custom jewelry, restoring antique pieces, or shaping small models, this set provides the tools you need for precise results. -
Question:
What is the difference between diamond bits and regular bits?
Answer: The main difference between diamond bits and regular bits lies in their durability and effectiveness. Diamond bits are coated with diamond particles, which allows them to cut and grind harder materials more efficiently than conventional bits. This makes them far superior for lapidary work, jewelry making, and any task requiring smooth finishes. Regular bits may wear out quickly on tough materials, while diamond bits maintain their sharpening for longer. -
Question:
Are the bits compatible with all types of rotary tools?
Answer: Yes, these diamond rotary grinding bits are generally compatible with most rotary tools that accept a 1/8'' shank. This makes them a versatile choice for users who may own different brands or types of rotary tools. Always check your tool’s specifications to ensure compatibility, but in most cases, you will experience a seamless fit and function. -
Question:
Why choose this specific diamond burr set over others?
Answer: Choosing this 50pcs diamond rotary grinding burr set gives you a comprehensive selection of shapes and sizes to handle different tasks both efficiently and effectively. The high-quality diamond coating offers enhanced durability, while the variety allows you to perform detailed work or broader grinding tasks. Investing in a diverse bit set provides more versatility for any creative project. -
Question:
Where can I buy the 50pcs 1/8'' Shank Diamond Rotary Grinding Bit set in Saint Kitts and Nevis?
Answer: You can purchase the 50pcs 1/8'' Shank Diamond Rotary Grinding Bit set from Ubuy in Saint Kitts and Nevis. Ubuy offers a convenient online shopping experience with a range of products and reliable service. You can find product specifications, customer reviews, and easy access to your order to ensure you get the best value for your crafting needs.
Preamer Cutting Burrs PR-28414 Editorial Review
The Preamer 50pcs 1/8'' Shank Diamond Coated Rotary Grinding Head set is a great value for the price. It comes with a variety of bits and sizes that have been found useful by customers. The flat circular bits seem to be the most durable and long-lasting, however, some shapes wear out quicker than others. The set is more durable than other cheap alternatives. It is effective on soft stone but not very effective on .999 silver. Several customers noted bent shafts, which rendered some bits useless. However, overall, this product receives positive ratings and is Considered a good purchase for its price.
Customer Reviews & Ratings
43 customers ratings
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5 Star
60%
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4 Star
16%
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3 Star
9%
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2 Star
10%
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1 Star
5%
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Pros
- More durable than other cheap sets
- Large circular bits are fantastic
- Variety of bits and sizes is useful
- Good number of bits
- Good price
Cons
- Some shapes wear out quicker than others
Platform Trust & Buyer Confidence
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Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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Anke
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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Hazel
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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Features & Benefits
- 50 pieces Diamond coated rotary grinding heads / burrs in box set
- Suitable for using on different materials such as metal, glass, stone, and hardwood
- 10 different grinding bits for abrasive, engraving, cutting, polishing, carving, and etching
- Compatible with most rotary tools
- Grit 150, which is quicker than larger grit burrs when sanding, polishing and engraving
- Shank size is 3mm, close to 1/8 inches
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