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Item #:
39622865
1/8" Shank Diamond Coated Cylindrical Grinding Mounted Point Bits Burrs Compatible with Rotary Tool Bit, 4 mm Head, 10 pcs
85% of respondents would recommend this to a friend
Item #:
39622865
GMD 1148
Price Details
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What Stands Out
Versatile Size Range
Includes 12 different diamond-tipped burrs ranging from 4 to 12mm. Ideal for various jewelry and lapidary projects, providing users flexibility for detailed grinding and polishing.
Precision Cutting
Each mount point features diamond coating for exceptional durability and sharpness. This ensures precise shaping and refining, making it suitable for both amateurs and professionals in jewelry crafting.
Easy Compatibility
Designed with a standard 1/8" shank for easy attachment to most rotary tools. This feature allows seamless integration, enhancing user experience and efficiency in their crafting tasks.
Product Details
- Set of 10 new 80#grit diamond coated cylindrical grinding mounted point bits burrs with 4mm head diameter
- Made of durable metal and diamond material, suitable for filing glass, ceramics, tile, brick, plastics, wood, fiberglass, stone, carbide, and metals
- Recommended for jewelers, lapidary, hobbies, crafts, modeling, and home repair, provides uniform cutting on a variety of materials
- Compatible with universal 3mm (1/8 inch) shank grinding drill bits for most rotary tools or die grinders
- Each bit has a head length of 13mm, shank diameter of 3mm, and total length of 45mm in silver tone color
- Designed for precision grinding, shaping, and finishing on hard materials, and can be used with water as a lubricant
| Compatible Devices | Angle Grinder, Die Grinder, Rotary Tool |
| Grit Type | Medium |
| Grit Number | 80 |
| Recommended Uses For Product | Grinding, Shaping, Finishing, Jewelry Making, Lapidary, Home Repair, Crafts, Modeling |
| Compatible Material | Glass, Ceramics, Tile, Brick, Plastics, Wood, Fiberglass, Stone, Rock, Carbide, Gold, Platinum, Silver, Metals |
| Brand Name | Preamer |
| Industry Standard Identifier | 4MM |
| Model | 4MM |
| UPC | 745950874300 |
| Manufacturer | Preamer |
| Unit Count | 10 Count |
| Number of Items | 10 |
| Grit Material Type | Carbide,Diamond |
| Construction Type | Coated |
| Material Type | Diamond, Metal |
| Item Dimensions L x W | 0.16"L x 0.16"W (0.4 cm) |
| Item Thickness | 4 millimeters |
| Item Diameter | 4 millimeters |
| Item Dimensions | 2.76 x 0.16 x 0.16 inches (7 x 0.4 x 0.4 cm) |
| Grit Material | Carbide,Diamond |
| Product Dimensions (L x W x H) | 0.16"L x 0.16"W (0.4 cm) |
| Brand | Preamer |
Who Should Buy?
-
Jewelry Makers
Ideal for professionals creating intricate designs and polishing jewelry with precision and efficiency using diamond-coated tools.
-
Lapidary Enthusiasts
Perfect for hobbyists who shape and polish gemstones, ensuring high-quality finishes with diamond-tipped burrs.
-
DIY Crafters
Useful for artists and crafters looking to add details and enhancements to various materials like glass or ceramics.
-
Beginners
Not the best choice for beginners unfamiliar with using rotary tools, as they require precision and experience.
Product Description
1/8" Shank Diamond Coated Cylindrical Grinding Mounted Point Bits Burrs Compatible with Rotary Tool Bit, 4 mm Head, 10 pcs
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Can these tools be used on glass?
Answer: Yes, they are perfect for glass engraving and polishing. -
Question:
What is the shank diameter of the tools?
Answer: The shank diameter is 3mm or 1/8 inches. -
Question:
Are these tools compatible with other brands?
Answer: Yes, they can be used with any compatible rotary tools. -
Question:
Will these grind stainless steel?
Answer: Depending on quality of the metal, thickness, amount to be removed, these diamond bits will cut stainless steel. They will wear very quickly. You may be disappointed in the results. -
Question:
Can this be used to drill holes in wine bottles?
Answer: Sorry, it maybe not , it is not a glass drill bit. -
Question:
What is the grit rating of these bits?
Answer: It is 80. -
Question:
What is the shank length please?
Answer: They have the same length shaft as Dremel brand. -
Question:
What grit level is this? 120? 220? 600? 1200? Thanks
Answer: I would say about 120. It cuts fast and rough. Take down sprees, lumps of solder, etc. ...then clean up with finer files, grey wheels, or sandpaper. Makes nice surface texture when u “scribble” on surface. -
Question:
Conversion from mm to inches 4mm?
Answer: 3.175 mm -
Question:
Will they work with beadsmith electric engraver?
Answer: Yes. -
Question:
Can you ship this parcel to dubai?
Answer: Yes. -
Question:
Does this set contain a 7mm head?
Answer: Yes, there is a 7mm diamond burr.
Preamer Cutting Burrs Editorial Review
The 18" Shank Diamond Coated Cylindrical Grinding Mounted Point Bits Burrs Compatible with Rotary Tool Bit, 4 mm Head, 10 pcs are great for enlarging holes in glass, shaping ceramic items, grinding edges of stained glass, and cutting through glass tiles. The diamond bits are coated with a fine grit which means they tend to get clogged easily and therefore require frequent rinsing and wiping during use. However, they are great for use as one of the final steps during the polishing process. The set comes in several sizes and includes a 7mm diamond burr, but sadly, all are of the same grit, and there are no different grit sizes to choose from.
Customer Reviews & Ratings
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Pros
- Perfect size
- Abrasive on top flat circle end
- Can be used for multiple materials
- Affordable
- High-grade diamond coating
- Works well for grinding edges of stained glass and cutting through glass tiles
Cons
- Same grit for all bits
Platform Trust & Buyer Confidence
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23 July 2026 · via Trustpilot
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GMD 1148
Order now and get it around Friday, September 11
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Features & Benefits
- Compatible with Dremel tools for versatile use.
- Includes diamond burr tools for various applications.
- Perfect for cutting, grinding, carving, and more.
- Suitable for both professional and hobbyist use.
- Durable metal and diamond material ensures longevity.
- Head diameters range from 4-12mm for precision tasks.
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