Serge with confidence on multiple layers of denim layered knits and heavy-duty fabrics with the heavy-duty Brother ST4031HD Serger. This is a 3 or 4 thread serger that allows users the flexibility to handle thick materials with ease yet has the precision to work with lightweight fabrics. The strong interior metal frame helps ensure your serger remains stable on your work surface even at very high speeds. The wide detachable table built into the ST4031HD keeps heavy fabrics on a level surface with the needle helping to prevent excess pulling on the needle and thread for better finishing. The Brother Serger allows you to get more serging done quicker by sewing up to 1 300 stitches per minute.