Machines & tools

A small brush used to clear fabric lint and thread debris from the bobbin case, feed dogs, and tension mechanism during routine cleaning.

Routine application of sewing-machine oil to designated moving metal parts to reduce friction, prevent wear, and keep the machine running smoothly and quietly.

The snapping of a sewing machine needle, typically from hitting a pin, a bent needle, the wrong needle size, or fabric being pulled against the feed.

A tangled mass of thread, usually on the fabric underside, caused by incorrect threading, an unbalanced tension, or an improperly seated bobbin.

A dense tangle of looped thread that jams beneath the fabric, usually caused by an unthreaded take-up lever or incorrect upper threading.