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💎 Flip, Drill, Create — Twice the Size, Five Times the Life!
The Dremel 664DR Diamond Drill FlipBit is a versatile, dual-size diamond drill bit engineered for precision and durability. Its innovative flip design allows quick switching between 1.6mm and 2.1mm holes, while the spiral flute accelerates material removal. Built to last 5X longer than standard bits, it excels on hard surfaces like glass, tile, stone, and ceramics—ideal for professional makers and DIY enthusiasts aiming for flawless craftsmanship.


| Material | Diamond |
| Finish Type | Diamond |
| Shank Type | Straight |
| Brand | Dremel |
| Item dimensions L x W x H | 0.67 x 1.94 x 4 inches |
| Tool Flute Type | Spiral |
| Minimum Bore Diameter | 1.6 Millimeters |
| Point Style | Diamond Point |
| Surface Recommendation | Aluminum,Ceramic,Glass,Metals,Stone,Wood |
| Number of Flutes | 3 |
| UPC | 080596039585 |
| Unit Count | 1.0 Count |
| Global Trade Identification Number | 00080596039585 |
| Manufacturer | Dremel |
| Part Number | 664DR |
| Item Weight | 0.32 ounces |
| Product Dimensions | 0.67 x 1.94 x 4 inches |
| Item model number | 664DR |
| Is Discontinued By Manufacturer | No |
| Size | No Size |
| Color | Burgundy |
| Finish | Diamond |
| Item Package Quantity | 1 |
| Included Components | Unit^Instruction Guide |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |
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