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Needles used for sewing machines differ from those for hand sewing. On a machine needle, the hole is at the bottom instead of the top, and the base of the needle has a flat end to be inserted into the machine and fastened tightly with the screw tab.

An generalist needle with no special features. Can sew most fabrics. Check the thickness of the needle for the weight of your fabric.

Unlike other needles, a ballpoint needle has a purposely rounded tip. This is because the needle is intended for stretch knit fabrics, and the dull tip allows it to pierce stretchy fabrics without snagging or pulling.

Guide to Serger Needles vs Sewing Machine Needles