Features: This 150 piece mini twist drill bit set, crafted from durable high speed steel, offer wear resistance and 0.5-2.0mm diameter options for precisions drilling in delicate materials. The comprehensive kit features a plastic storage case for organized portability, while optimized flutes design ensures stable positioning during electronics repair and model assembly. Ideal for jewelry makers, DIY crafter, and model enthusiasts requiring drilling accuracy in intricate projects like bead crafting and miniature engineering. Perfect for workshop benches tasks, hobbyist workstations, and outdoor repair scenarios where multi material drilling demands professional tool with minimal deviation. Engineered for lasting performances across wood, plastic, and soft metals, these twist bits deliver clean holes for watchmaking, circuit board modifications, and detailed craft applications. Specifications: Component:Steel Size: Includes a variety of diameters, from 0.5mm to 2.0mm Package Includes: 150Pcs Twists Drill Bit note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.