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Precision drill for demanding projects. The Rosenthal Burs Twist Drill 2.30mm, ISO #023 Busch®, is engineered from robust tungsten carbide for exceptional durability and performance. Ideal for intricate jewelry making, model building, and various crafting tasks, this drill bit excels in drilling through a wide range of materials, including metals (gold, silver, brass), plastics, wood, and resin. Experience smooth, accurate drilling with minimal burr formation.