Nova Spindle Adapter 1 1/4 x 8 Female to M 30 x 3.5 Male
You may have purchased a new lathe I.e Dvr Xp or Saturn which has a 1 1/4 L Insert spindle
but you have many jigs and face plates or even chucks dedicated to your old Nova 3000 30 x 3.5 Q insert.
Or you belong to a club that has Dvr Lathes 1 1/4 x 8 and you want to use your 30 x 3.5 attachments