A few years ago, Groz-Beckert took over the Singer industrial needle division. The old yellow Singer needle cases will soon disappear and all will be in the standard green Groz-Beckert packs. If the label has a red strip across the top, it is a titanium-coated needle. If the word "Gebedur" is printed in the bottom left-hand corner of the label, it is a titanium-coated needle. Below is an explanation of what the different numbers mean on Groz-Beckert longarm needles.
Most needles recommended for quilting have a slightly rounded sharp point, indicated by the code FFG. The rounded sharp point allows the needle point to separate, then penetrate the fabric instead of cutting through everything.