Please don't ask me why I have so many gears. I bought these over time, always intending to find a use for them but never have! I believe they are all metal lathe changewheels, but might have another purpose
8DP:
6 spline 0.9" bore 3/4" width: 16Tx3, 20Tx4, 22Tx2, 24T,26T,30T,32T,34Tx2...