Probably any newer machine that has a basting stitch. My almost 20yo Bernina 1230 has this. The max regular stitch length is 5mm; however, by hitting the basting stitch button the machine skips every other stitch. To get 6mm I would place it on a 3mm stitch and engage the basting stitch option. It even has an option to skip every 2 stitches in a row; however, I have never found a good use for that one!