I had a 6 7/8" Lenox hole saw that worked great, it did not have teeth it had an abrasive grit.

But I loaned it out and that was the last I saw of it. [Linked Image]

<IMG SRC=\"http://www.lenoxsaw.com/images/recess.jpg\">

Click on the Hole Saw. [Linked Image]


Bob Badger
Construction & Maintenance Electrician
Massachusetts