This is manufactured as a fine beading awl, but I use it as a laying tool. A laying tool can help you get the exact tension you need for knot work and other intricate stitches that need a little extra something for perfect execution. It's also helpful for detangling threads because the point is so long & sharp, it can slide right into those knots to loosen them up. And, of course, you can use it for bead work!
A truly helpful tool that I keep in my kit at all times.