Our Alloy Solid Carbide Precision 3D Micro Twist Drill Bits are carefully ground for smooth cutting and stable chip evacuation. Universal drill series covers a diameter range from 0.1 - 20 mm and provides 3xD drilling capability. Manufactured to strict industry standards or custom specifications to suit various mold and precision metal machining applications. These tungsten steel micro drills deliver high-performance cutting with extended tool life for continuous mass production. All drill bits adopt high-density carbide substrate with precisely ground cutting edges to minimize chipping and breakage. Non-standard micro sizes and special flute geometries, point angles can be customized upon request. Tight diameter tolerance is maintained to guarantee consistent precision of micro holes.