Concave 3mm Diamond Grinding Burr Drill Bit Rotary Tool Kit 1/4 Inch Shank Concave Polishing Burr Bits #150 for Bracelet Ring Jade Carving Polishing
US$2.98
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US$2.98
Price when purchased online
Free shipping
Free 30-day returns
Sold and shipped by ww1.womenagainstregistry.org
Free 30-day returns Details
Product details
| Management number | 218789478 | Release Date | 2026/05/03 | List Price | US$2.98 | Model Number | 218789478 | ||
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- ▲【SPECIFICATION】This burr bit diameter is 20mm, the side width is 3mm, and the #150 grain size is suitable for rough polishing; the diameter of the rod is 6mm, which is suitable for flat knitting machines, bench drills, electric drills, etc.
- ▲【ADVANCED TECHNOLOGY】The concave emery grinding head is made of high-quality emery and processed by the overall precision turning (numerical control lathe); the concentricity is accurate, and there is no yaw phenomenon, so as to ensure the quality of the product and the use effect.
- ▲【ARC DESIGN】The concave arc design diamond grinding bit is especially suitable for the arc grinding of bracelets, rings and jade beads; the emery particles are uniform, without convex sand, and the processed products are more delicate and smooth, without unevenness.
- ▲【POWER POLISHING】150# Coarse sand: Advantages - High grinding efficiency, quick shaping and wear resistance. Disadvantages - The grinding surface is relatively rough. It is recommended to use it with a fine-grained grinding bits for high work efficiency.
- ▲【APPLICATION】Rotary grinding burr bit mainly used for shaping, polishing, trimming the edges of bracelets, rings and jade beads of different widths or polishing the edges after stone processing.
| Item Weight | 0.67 ounces |
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| Manufacturer | NUODUN |
| Product Dimensions | 1.97 x 1.57 x 0.79 inches |
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