Standard Overlocker/Serger

• Usually 3 or 4 thread. Usually in a combination of 2 needles forming a mock safety stitch (appears as a straight stitch from above) with an upper & lower looper. Some machines however have 5 threads in a combination of 3 thread overlock (one needle, two looper) & 2 thread chainstitch.
• Some older 4 threads have a combination described as 2/4. This is a 2 thread chainstitch with an independent 2 thread overedge
• Some more recent machines have different feet available for functions such as blind hemming & elastication.
• All incorporate a trimming knife to cut raw edges
• More recent machines have easily moved parts to enable swift set up for narrow or rolled hemming
• Good for most home seamstresses