decca
Member
- Messages
- 907
- Location
- Crawcrook, Gateshead.
I used cutting oil and know what you mean about the scraping of small particles. I will try some normal oil tomorrow.I use oil, but not cutting oil, as I want the knurls to compress and displace the metal as uniformly as possible. Cutting oils tend to allow sharp knurls to dig in and scrape off small particles and then embed them giving an uneven finish which needs wire brushing; at least that's been my experience.