Idea sticks it to a drilling problem
http://www.cnccncmachines.com/articles/5888/1/Idea-sticks-it-to-a-drilling-problem/Idea-sticks-it-to-a-drilling-problem.html
By Super Admin
Published on 12/22/2008
I often drill 1 /16-in.-diameter angled bleeder holes deep within workpiece cavities. Since standard-length drills don't reach, I use an extension made from drill rod. The trick, however, is securing the drills in the extension.
Idea sticks it to a drilling problem
I often drill 1 /16-in.-diameter angled bleeder holes deep within workpiece
After inserting a drill into the extension, I soft soldered it in place, but the drill loosened and broke. To remedy this, I applied a few drops of 910 cyanoacrylate adhesive on the drill's shank before inserting it into the extension and gave it a few minutes to dry.
The drill didn't break or get stuck when dull. Instead, it completed the hole and then gradually loosened. I removed the drill with needle-nose pliers, reglued it into the extension, and drilled the next hole. This setup eliminates a lot of broken drills.
http://www.americanmachinist.com/304/Issue/Article/False/9721/Issue
After inserting a drill into the extension, I soft soldered it in place, but the drill loosened and broke. To remedy this, I applied a few drops of 910 cyanoacrylate adhesive on the drill's shank before inserting it into the extension and gave it a few minutes to dry.
The drill didn't break or get stuck when dull. Instead, it completed the hole and then gradually loosened. I removed the drill with needle-nose pliers, reglued it into the extension, and drilled the next hole. This setup eliminates a lot of broken drills.
http://www.americanmachinist.com/304/Issue/Article/False/9721/Issue