The correct size and type of Machine Needle is essential to the production of quality embroidery and quilting. There is no such thing as a cheap needle, just needles of inferior quality. The needle is the first point of contact between the machine and your work, so never compromise on quality. It really is not worth it.
We class a needle as an 'Industrial' needle if it has a completely round shank. Domestic needles have a flat back on the shank. If your needle has a flat back then you need the Domestic Machine Needles