yes it dose... you don't want the buff to come loose when you are working on a part ...... caswell got them in both left and right hand thread ...
i got them on a motor and the ext. shafts are nice .... you can get the part around more
PROD SAXLLT5 Extra Long Shaft Adapter 5/8" Bore Left Thread $10.75
PROD SAXLRT5 Extra Long Shaft Adapter 5/8" Bore Right Thread $10.75
http://www.caswellplating.com/buffs/longsa.htm