involute gear cutter for 9x20 lathe?

[Frank S]

the charts I posted were screen shots from the Martian Sprocket & gear catalog called the big catalog it can be found here free download but be warned it is 61,387 kb
so it will take some time to download if you have a slow connection mine took about a minute but there are smaller target sections which can be downloaded on the same page these can be found here
Power Transmission, Material Handling & Hand Tool Manufacturer
I have a hard copy of the 2000 catalog and both the 3000 and the big catalogs saved on my computer very helpful for many tasks