tag:blogger.com,1999:blog-3285945974426064078.post642765844704029349..comments2009-02-09T02:52:37.805-08:00Janet Tierneyhttp://www.blogger.com/profile/09628013733402405071noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-3285945974426064078.post-23083405890160383682009-02-09T01:39:00.000-08:002009-02-09T01:39:00.000-08:00The commercial grade investment casting tolerances are more akin to sand cast tolerances, but the process control and process variation are much better. You also don't need draft angles as the tooling is made in the same way as for investment casting; the wax part releases from the tooling as it cools.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3285945974426064078.post-27709540953439735212009-01-09T10:01:00.000-08:002009-01-09T10:01:00.000-08:00How good are the tolerances on the commercial grade castings compared to the premium grade?Anonymousnoreply@blogger.com