This 39" long inner shaft comes installed and should be used to replace broken or worn shafts on these motors:
M.SR, M.SRM, M.SRB
M.TX, M.TXM, M.TXB
M.LX, M.LXM, M.LXB
Use with outer sheaths sold separately.
Replacement shafts require a VERY light coating of Foredom grease before use.
Be sure to UNPLUG your motor before doing any maintenance