When my application requires threading mdf, I use thin CA (superglue, cynoacrilayte). It wicks into the mdf making a hard strong thread. The thinner the better. I drill, tap, then use CA, then retap when it has dried.
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Phil, Still too many interests, too many projects, and not enough time!!!!!!!!
Vist my websites - http://pminmo.com & http://millpcbs.com |