What is the difference between the two types of overlock needles?
The SCHMETZ overlock needle ELx705 CF has a standard tip suitable for various types of fabric, while the SCHMETZ overlock needle ELx705 SUK CF has a rounded tip specially designed for stretch and knitted materials. The SUK variant is gentle on stretchy fabrics by pushing the fibers to the side instead of piercing them, which prevents runs and skipped stitches.
Why does my overlock machine need special needles?
Overlock machines work at higher speeds and with special stitch patterns that connect multiple threads and layers. Special overlock needles such as the ELx705 from SCHMETZ are designed to meet these requirements and offer precise stitches and high stability without the risk of skipped stitches or needle breakage.
How often should I replace my overlock needles?
It is recommended to change the overlock needles regularly - after about 8-10 hours of intensive sewing or after each major project. Dull or damaged needles can affect the stitch pattern or damage the fabric, so regular replacement is important for clean and precise seams.