Coverlock / overlocker needles ELx705 SUK size 80/12 Schmetz pack

Size 80/12

These needles are meant for Coverlock and overlock machines for working with jersey fabrics. They are covered with a chrome coating which makes the needle smoother and better suited for knitted fabrics. The letters CF stand for Chrome Finished

Sewing machine needles by Schmetz are world renowned for excellent quality.
These are slightly longer then universal needles and are used in Coverlocking and Overlocking machines. 

Special features:
For household coverlock or overlock machines whose operating instructions specify 
the use of the needle system ELx705, ELX705 CF, ELX705 CR or SY 2022
Flat shank
Overlock needles with a second thread groove to create chain 
stitches such as overlock or coverlock

See the owners manual of your machine for the correct needles...

Have trouble choosing?
Find an overview for the combination of fabric, thread and needles here: (dutch) 
Garen en naalden gebruikstabel

TIP: a needle has a working life of 8 hours.

That does not mean you have to change your needle after one day. It more like this: If you press the pedal of your sewing machine down and hold it down for 8 hours straight, then you need to change the needle.
The easiest to remember is to have a new needle every time you start a new project