- Set of 10 tungsten carbide micro drill bits, specially designed for PCB, CNC, and SMT - 0.5mm cutting diameter, high hardness and wear resistance - Sharp edge and spiral groove that improve precision and chip evacuation - Reduces cutting force and minimizes the risk of breakage during drilling - Perfect for delicate work on circuit boards, modeling, jewelry, and crafts - Suitable for hard materials such as plastic, copper, and stainless steel - Includes a durable and easy-to-use storage case - Positioning ring design that makes installation and bit changes easier - Professional tool for clean and precise results every time