You can spend lots of ££ for a Trelawny needle scaler , for my money the top $ is a Von Arx (Swiss) . Having said that about 3 years ago I picked up a Taiwanese manufactured (copy of a Trelawny in-line) in fact sold under ther Compair automotive (cheaper) range , a model APT114D (probably obsolete model) for £30 - I use thermal gloves (useless in winter as hardly thermal, I obtain better now) , vibration levels were quite low. I don't think there would be any problem from vibration white finger.
Times have moved on , so has equipment - I recall doing my turn "dry-dock" and having a go with the real primitive scalers & scrablers. Incidently the top-sides were done by the lascar gang with hand hammers in tune to the serang who used a sledge LoL
Stripped aux. engines such Rustons , many parts were put into a barrel with caustic soda with a steam hose passing in to boil, a young paniwalla placed some big-end brasses in and it stripped the white-metal , as a junior eng. that was something useful that I then learned - and my first job as a apprentice was operating the Butler shaper in the brass foundry of a BR workshop roughing out the white metal..