Engineer with lathe to make small SS adaptor (Saint Marychurch TQ1)

Does anyone know of a business or private individual in the Torbay area who has a metal working lathe and is able to precision turn one off small components, I have a vintage jewellers press which takes 3mm stumps but need an adaptor made to enable it to take 4mm stumps, I have tried "Google" but all the listings seem to be set up for commercial quantities.

Any advice welcome

Thanks

Tim