[metelin]

here you go: the flat portion on the top of the shaft is .750 long and .260 thick when measured from bottom to the top of the shaft. the notch on the bottom is .370 long and it starts at .210 from the back of the shaft. notch to the top of the flat spot is .120 thick. these are the dimensions of a mori 5/16'' (.312) but they all should be about the same.

hope you get a good grade.

steve