This cordless electric screwdriver and small electric engraver pen combines 16000RPM constant speed with double charging/power modes, featuring a light weight design perfect for precisions tasks and artistic creations. Engineered with a builtin cooling fan motor and thick walled copper chucks (0.5-3.2mm grip ranges), it ensures extended durability, efficient heat dissipation, and secure bit retention during prolonged use. Ideal for enthusiasts, professional technicians, and craft requiring good for delicate repairs, electronics maintenance, or intricate artwork projects. Tackle switches installations, circuit board repairs, or jewelry crafting effortlessly with its small size, portable build that fit seamlessly in toolkits or workshop benches. uninterrupted operations with the integrated battery and ergonomic design, delivering professional power for both workshop and on site applications., Weight: 0.3747858454 pounds, Manufacturer: MEILVMEIJI