THIS ISN’T MY TIP AND I HAVEN’T HAD A CHANCE TO TRY IT, BUT I WILL. I AM GOING TO KEEP SANDPAPER IN MY SEWING BOX FOR THIS REASON FROM NOW ON. Sharpen sewing machine needles by stitching through fine-grit sandpaper. THANKS FOR THE TIP CLOTILDE THANKS FOR VISITING AND HAVE A GREAT DAY.