A twin needle consists of two needle points mounted on a single shank, allowing you to sew two parallel lines of stitching at once. This is particularly useful for creating hems on stretchy fabrics, such as knits, as it mimics the look of a double-stitched hem commonly found in ready-made clothing.
A double needle sewing machine, as the name suggests, uses two needles working in tandem to create symmetrical stitching. This capability is particularly beneficial for leather projects where strength and visual appeal are crucial. Whether you are crafting bags, jackets, or upholstery, this type of machine offers several advantages that can significantly enhance your leatherworking experience.