• Made with tungsten carbide tip for high wear resistance and great hardness. • High-speed steel shank providing robustness and durability. • Cutting edge diameter: 0,6 mm. • Cutting edge length: 9,5 mm. • Shank diameter: approximately 3 mm (1/8 inch). • Approximate total length: 38 mm. • Useful for drilling and processing jewelry, watch parts, metals, stainless steel, copper, acrylic, and plastics. • Note: Due to their small size, the drill bits are fragile and require careful handling during use.