What can I use to help with pain in hands caused by using power tools like grinders and polishers?

1. I'd use plasma, running the Healing and Regeneration preset.

Path: Presets > Heal > Plasma > Healing and Regeneration

Select it and move directly to your plasma's generator to run. I'd put my hands on or near the plasma and, as it's a long preset, do it in stages. I have in fact used it for this same purpose myself as I have a degree of arthritis in my fingers from years of keyboarding and design work.

2. You are possibly at risk of developing 'vibration White finger' your employer maybe should assess how long you are using vibrating tools on your shift and the vibration levels these tools produce.

If that is going to be possible, you can get gloves with gel pads inside which reduce vibration reaching the hands.

White finger is nerve damage and damage to blood vessels leaving you with poor circulation.

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