Magnetic Ring Effect Tips1:The head of the batch is equipped with a strong magnetic ring, which is suitable for the installation of long screws and high-altitude operations and sucks the screws without shaking; Tips2:The magnetic ring can be stretched freely. The double-headed batch of heads can be removed and used to remove the magnetic ring. Tips3:The magnetic ring can move up and down, which can solve the situation that the original bit is not inserted in place due to the different depth of the cross groove of the screw; Tips4:The high-strength magnetic ring bit is suitable for installing extended self-tapping screws and tail screws. Tips5:The magnetic ring bit can also prevent the screw from being driven too deeply.