MT5 to 5C Lathe Collet Sleeve
MT5 to 5C Collet Sleeve will fit lathe spindles that accept the Morse #5 taper. A Morse #5 taper has a gage line of 1.748, that is the size that your spindle needs to be for this Collet Sleeve to work.
You should also check your spindle's bore diameter. The through bore on your spindle should be around 1.5 for the sleeve to seat.