Here are three different LSF720's that I know of. LSF720 (date code 87) LSF720A (88) LSF720B (91). Other than the dust covers, handles and type of selector switch, the only difference, that I can see, is that the screws on the 720 are offset from the normal 3/8 rats, you can see it in the last to pics. So, the faceplate for the 720 can only be used on a 720 or a SF720 (reg. handle) and maybe the LSF710 (not sure). You can get a kit from Snap on to convert these to 30 tooth.



