The needle of system 134 has a medium ball point for working knit fabrics, without damaging the loops. It is used in industrial lockstitch and general-purpose sewing machines. Suitable machine classes are found, among others, at Pfaff (classes 22, 28, 33905, 34), Juki (classes ACB, ACF, AEC, ALS) and Singer (classes 20, 61, 107, 108).
Thinner needle sizes are used, among others, for fine, light jersey and tricot fabrics, and the thicker versions for heavy, dense knit fabrics and technical knits. As sewing thread, a matching thickness is usually recommended depending on the needle size chosen, e.g. from Amann Serafil or Rasant; for very stretchy seams, a texturised thread also works well. The ball point glides between the loops instead of piercing them, keeping the seam clean and undamaged.
