The size specifications of this batch of head sets include six different sizes ( 25mm, 50mm, 65mm, 70mm, 90mm, 150mm) ranging from 25-150mm, which can meet the needs of different work scenarios and screw specifications The screwdriver head is equipped with strong magnetism, which can firmly adhere to screws, making it for tightening or disassembling screws in small spaces or vertical surfaces that are not easy to operate Suitable for various electric tool such as drills, electric screwdrivers, and more, and can also be used with manual screwdrivers Whether home maintenance, professional decoration, or industrial production, it can demonstrate its excellent Excellent impacts resistance During use, it can withstand large impacts forces, is not easily damaged or deformed, and ensures long-term stable operations The surfaces of the batch head has undergone special and has anti slip function, which can effectively the batch head from slipping off the screw during operations and improve work efficiency The batch head has threads, which can better pair with the screw grooves, increase the area, and make the tightening and dismantling of screws easy and fast, Manufacturer: GinMimi