Cutting Internal Threads on the Metal Lathe: Threading a Custom Nova Chuck Insert

Cutting some internal threads to make a custom sized 1-1/8" - 10 TPI adapter for a Nova SuperNova2 chuck.  This is for a friend of mine who has a similar wood lathe made by the Crescent Machine Company back in the 1950's.  For whatever reason, Crescent decided to use a very non-standard thread size for the spindles on their lathes and no company makes a standard adapter to fit it.  But, Nova does have a blank adapter that you can buy and have machined to whatever size spindle you like.  That is my job of the day - to take that blank and make this custom adapter.

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