Trying to Thread on Craftex Lathe

[Dr Stan]

Check with your local industrial supplier who carries gears, Boston Gears if possible and have them order you a 65 tooth gear.  You'll have to finish the bore and cut the keyway, but it will be a lot cheaper than from a machine tool dealer/supplier.  Since you have a lathe you have everything you need to finish the gear, including cutting the keyway.  Here is how to cut a keyway on the lathe:  https://www.youtube.com/watch?v=yQcgLDZLMsk

Same way I was taught in 1973 at the Navy's Machinery Repairman School.