SEW-RETRO GreaseTM has been specially formulated with the proper melting point and lubricating qualities for vintage & antique sewing machines, including the Singer Featherweight 221 & 222K... some attachments need grease sometimes, too!
SEW-RETRO GreaseTM is appropriate for any and all sewing machines with all-metal gears. (Do not use this lube with any plastic or nylon gears.)