I remember a quilting class where the instructor had a porcupine quill in her tools. It seemed like an odd item to find in a sewing kit, but when she showed us how she used it, I promptly got one for myself.

Image shows a sewing machine with fabric being fed through the stitching area.
Holding down the seam allowance.

When you are making a quilt, you sew across multiple seams, and it can be difficult to get everything to lie flat while you are doing this. A stiletto helps keep things lined up and neat.

The long narrow tip allows you to guide the fabric through the machine without getting you fingers close to the needle. I personally have never (knock on wood) stitched through a finger, but I know a number of people who have.

You can use a stiletto to punch a hole in fabric or leather, either for stitching of adding grommets. It can be used to help turn the edge of applique under before stitching it down.

A fancy brass stiletto

image shows a brass stiletto in two parts.

I had seen a brass stiletto with a needle tip. It had a cap to protect the tip from getting damaged and reduce the risk of it poking anyone or anything when not in use. I showed it to Walt, and he decided he would try to make one. He made several, some which were used a gifts and some that were sold.

He will show you more about how he made them in one of his shop project posts.

I use mine every time I am at the sewing machine.

Image shows a porcupine quill and a stiletto with the sections connected
The porcupine quill I started with and the brass stiletto Walt made for me.