- Joined
- May 27, 2010
- Messages
- 2,999
- Reaction score
- 1,171
With steel I had trouble getting a good surface finish until I started using Tapmatic cutting fluid instead of WD40 or whatever oil; started using the tailstock center to support the work (too much overhang and deflection) and used this lathe tool to remove the last two or three thou of metal;
http://www.gadgetbuilder.com/VerticalShearBit.html
Easy to make and works great on steels of unknown heritage....
Cheers Garry
Hi Garry,
Welcome to the Tapmatic Club. I use both 'all metals except Alum'' and 'Alum only' with good results and finishing. Parting with a sharp cutter and dobs of Tapmatic has not given me any tool breakages. I use parting blades from LMS.
Bought China equivalent oil for steel cutting. Results quite good. Tapmatic Oil
is very expensive. I use a small brush to dob tool and job.