50pcs Micro Drill Bits Kit for PCB Drilling and CNC Machining - Carbide Precision Drill Bits 0.5mm to 0.9mm Multiple Sizes for Circuit Board Carving Jewelry Engraving Applications

50pcs Micro Drill Bits Kit for PCB Drilling and CNC Machining - Carbide Precision Drill Bits 0.5mm to 0.9mm Multiple Sizes for Circuit Board Carving Jewelry Engraving Applications

• [Precision Engineering for Results] Featuring strictly symmetrical spiral flutes (3.175mm shank), each cnc engraving machine drill bit ensures accurate, burr holes from 0.5mm to 0.9mm. The optimized design prevents deviation and allows smooth chip removal—for intricate circuit boards, jewelry, and CNC projects.
• [Organized & Portable Storage] All carbide drill bits come neatly secured in a compact, labeled plastic case—no more lost or tangled drills! Lightweight (160g) yet sturdy, the box fits easily in toolkits or pockets for on-the-go repairs and workshops.
• [Premium Carbide Construction] Made from carbide, these micro drill bit set offer exceptional hardness and wear resistance. They longer than standard bits, resist bending/breaking, and deliver precise drilling performance for demanding PCB and precision engraving work.
• [Versatile Professional-Grade Kit] Ideal for PCB fabrication, SMT repair, mold making, and hardware processing. Includes 50 small drill bits (10 each of 0.5/0.6/0.7/0.8/0.9mm) to handle diverse materials like fiberglass, soft metals, and acrylics. A must-have for electronics engineers and DIY enthusiasts.
• [Efficient Workflow Enhancer] Designed to minimize clogging and overheating, these bits reduce downtime during high-speed drilling. Pair with rotary tools or CNC machines for effortless engraving, carving, and micro-drilling with professional results every time.