Barb_MO

On my machine the setting is past the longest stitch and shows -...SS...+ So I guess you could lengthen the stitch. On my older machine the title of the stitch was stretch stitch.
when I sewed garments I always used that stitch for anywhere I needed to trim the seam allowed down, and when sewing curves.

thimblebug6000

You can also lengthen this stitch & use it for machine sashiko. Just draw your pattern on to your quilt top & use this stitch slowly watching where it is in it's 1/2/3 so that you're in the right spot at curves, here's a table runner I used that stitch on.

weezie

That stitch (I think) was originally designed to sew double knit fabrics; a single row of stitching will not stand up to the stretching of knits. Now that double knit fabric is not popular any more, I use mine mostly for mending t-shirts and sweatshirts/pants. It works very well for that.

Barb_MO

I think I got on that stitch by mistake the other day when I was trying to do raw edge applique. The results was a heavy stitch around the edges, which was ok by me. Kind of rought outline, but still ok for what I was trying to do.

Marjpf

I did one thing with the triple stitch on my machine and thought I could have made a whole quilt top in the time it took to do one row. It's strong, but soooo slow.

Deecee

Love the table runner Thimblebug.

Oklahoma Suzie

beautiful runner

Oklahoma Suzie

great info on the stitch

craftybear

wow, I learned something new

MadQuilter

I think triple stitch is mostly recommended for sewing with elastic and fabrics that have a lot of stretch to them. The triple stitch is sturdier and won't tear as the fabric is stretched.