Use Side cutters to cut your wire to the correct length.
It is a good idea to keep hold of the end of the wire otherwise pieces can fly off as shown opposite.
If you use Side Cutters without holding the wire, pieces can fly off.
It is always a good idea not to cut wire near others but for small pieces it is easy to hold the other end so that it doesn't fly off.
Also be careful when using the side cutters as the blades can be sharp.