NPT Thread holes and chamfers

Discussion created by Guest on Aug 22, 2006
1.I am not getting cosmetic thread by hole wizard on cylindrical surfaces.Displaying message that" no valid edges for the cosmetic thread creation found".So how can solve this
2.If I use NPT holes, what is the default/minimum chamfer to give for starting edges?
3.I would liek to make NPTF hole .Can I get by Hole wizrd?

If anyone knows information, please elt me know