1. Highly prepared cut The micro drill bit set is manufactured using materials and refined grinding processes to ensure sharp cutting for effortless drilling through various materials, including PCB boards. 2. Efficient deposit removal Designed with a large drainage space, the small drill bits minimize debris during drilling. This function ensures that debris is smoothly removed, improving efficiency and maintaining the performance of the bit. 3. Reduced cutting force The bead drill bit set reduces the required cutting force and significantly decreases the risk of bit breakage. This design improvement ensures clean hole wall quality after drilling for precision tasks. 4. Userfriendly These small drill bit sets are designed for easy bit changes and will effectively cut through PCBs for soldering holes. They are ideal for hobbyists and professionals who require reliable, precision drilling capabilities.