The Chapman #9600 set is the standard of sewing machine repair people and restorers worldwide. Rated by many as the best sewing machine screwdriver bit set on the market, you will find a wide variety of slotted bit sizes you need for your antique or industrial sewing machine.
Our 12 sizes of slotted bits (aka flathead) are straight sided hollow ground bits designed to precisely fit slotted screws. Chapman bits are designed to minimize screw damage and break BEFORE damaging or marring a screw- more information here. Our mini ratchet is perfect for taking off needleplates and feed dogs. This set also has 7 open slots for customization. We recommend taking a look at our Star (fits Torx screws) bits, as many machines now come with Torx screws.
Our hollow ground slotted bits fit screws on the following machines: Brother, Singer, Husqvana, Viking, Janome, Elna, Pfaff, & Bernina.