Wieland Mini Hybrid Carbide Milling Burs from BT3 Dental. BT3 Hybrid Carbide tools are designed for dental milling applications. This is not your average carbide tool. Our economy-based product line performs like a coated tool without the extra cost. Made of proprietary high-grade material components and has a unique micro-grain structure. These properties increase heat resistance and allows the edge to stay sharper longer. The multi-fluted edges are micro polished for increased performance and life. Features Zirconia, PMMA, Wax, PEEK Multi-Material milling Low cost Great starting tool for beginners Wet or Dry milling *not affiliated with or a trademark of BT Designs LLC. All Trademarks are property of respective owners and only used for identification purposes