For ALL domestic sewing machines (including Bernina). This is the first titanium-coated needle available for home machines. It features an ultra-thin coat of titanium nitride layered on the surface. This needles lasts and average of five to eight times longer than conventional needles (40-60 hours). It is equivalent to saving 80% on the cost of needles. Other features include: a wider and deeper groove, oversized elongated eye, and a sharp point. Recommended for piecing and quilting with fine threads. Great for embroidery and metallic threads, too.