Hand screwdriver for small bits

READ THE DESCRIPTIONThis is the model of the handy screwdriver for bits.First few uses can be tight, but with time everything should work better.Use PETG instead of PLA.You can also change walls number, from 2 to 6, gonna work longer than 2 walls version.You need 4x M4x30 screw with ampul head anhd 4x M4 nut.And also in this version You need circular magnet, fi10x1.6.