I enjoyed watching Ian. It gave you a workout today! I was wondering if your lathe would cut 20tpi to make a new clutch puller but then you solved it. Best wishes, Dean.
Yes, I can cut 20tpi on either the Clarke CL430 or the Conquest mini lathe. The Clarke comes with the required change gears as standard but I bought some additional ones (55 & 65 tooth) a while ago for the mini lathe for another project. Handy web site page for anyone with a mini lathe and needs to calculate change gears is: littlemachineshop.com/reference/change_gears.php