- Joined
- Oct 29, 2014
- Messages
- 354
Get you three or four solid carbide four flute center cutting end mills. Chuck up on one in a collet, line up with the hole with the broken tap. Run it at 2000 RPM if you can get up to that speed. Apply your favorite cutting oil and gently peck at the tap until you get it all removed. It helps if you can grind the tap flush with the part. I removed a 5-44 tap a while back using this method.
This^^^^^ I had a broken 6-48 tap in a blind hole yesterday, I used the above method worked just fine. BTW it took me two endmills to get it out those little suckers break so easily