Sewing machine needles by Schmetz are wellknown and of excellent quality.

Embroidery needles are used for machine embroidery
 
Is chossing difiicult?
In this PDF we have made a manual for choosing fabric in combination with thread and needles: (dutch)
Garen en naalden gebruikstabel

TIP: a needle has a working lifespan of about 8 hours.

This does not mean you have to change your needles every day. It's like this: when you press the pedal of your machine down and hold it for eight hours straight. At the end of the 8 hours your needle needs to be replaced.

The easiest way of remembering to change your needles is to get a new one for every project.