Speedway
Industrial overlock sewing machine with the cover plate open, four threads converging at a knit-jersey rolled hem

Edge finishing and construction

Overlock

Overlock — also called serger — for seam finishing on knits, woven edges, and apparel where you don't want a raw edge unraveling. Speedway's line covers the standard 3- and 4-thread variants and the safety-stitch combinations that double as construction stitches.

Apparel contract manufacturers usually need at least one.