High Precision Tungsten Carbide Micro Drill Bits Solid Carbide Mini Drill for PCB Medical & Electronics Small Hole Machining

High Precision Tungsten Carbide Micro Drill Bits Solid Carbide Mini Drill for PCB Medical & Electronics Small Hole Machining. Ultra-Fine Grain Material: Made of ultra-fine grain tungsten carbide for superior hardness and wear resistance. Wide Diameter Range: Supports drilling diameters from 0.05mm to 3.0mm with tight tolerances. Multiple Coating Options: Available with TiN, TiAlN, and diamond coatings to reduce friction and extend life. Internal Coolant Option: Optional internal coolant holes for efficient cooling and chip removal in deep holes. Anti-Vibration Design: Balanced core thickness and optimized geometry prevent bending and breakage. Customizable Specifications: Custom lengths, step diameters, point angles, and coatings available per drawings. Versatile Material Compatibility: Suitable for PCB, copper, aluminum, stainless steel, titanium, and hardened steel.