This service kit will keep sewing machines and overlockers at a peak performance with regular home maintenance.

The large screwdriver is to loosen and tighten the needle and presser foot holder screws, it's also used to unscrew the throat plate for easy removable of the bobbin and bobbin case.

The generous size cleaning brush is used to clean fluff and debris from the bobbin race.

The smaller screw driver can be used to adjust the tension screw on the bobbin case.