Foredom S-77-66 sheath for most motors. This optional 63 1/4 inch long outer sheath can be used to replace broken or worn sheaths on these motors:
M.SR, M.SRM, M.SRBM.TX, M.TXM, M.TXB, M.LX, M.LXM, M.LXB, M.PGX, M.500L
Use with inner shaft S-93-66 or S-93-66NC, sold separately.