This pair of replacement flex shaft machine motor brushes fit both the 115V & 230V the post 2005 versions of the 1/6HP SR, SRM, SRB, SRH, SRMH, and SRBH as well as the 1/8HP versions of the SR, SRM, and SRB models.
If your unit is from before 2005 please look at 850-4117.