- Joined
- Jan 31, 2016
- Messages
- 11,515
I've run die grinders , air grinders on the BP in the past when high rpms were needed . I pulled out old gear boxes 5 to1 ratio , 3 to 1 etc . My thought back then was to use these instead of the elaborate setup involved . My question would be can I run these in reverse ? These are expensive and don't want to damage the internals . What are your thoughts ?