Ideally suited for denim fabrics, heavy twill, workwear, and densely woven fabrics such as canvas and heavy linens. Engineered to have a very sharp point and a stiffer shank to resist needle and heavy linens. Engineered to have a very sharp point and a stiffer shank to resist needle deflection and allow penetration of dense fabric. Threads range from synthetic or wrapped polyester, 100% polyester and topstitching threads. blends, cotton
