I was watching a infomercial for those rotozip tools, and it looks like it would be excellent for cutting blowholes and such. Take a look at www.rotozip.com to take a look at it. Has anyone ever used ...
Zip Bits are designed to cut material up to 1" thick All bits have a shank diameter of 1 by8" Provides everything you need to cut drywall, wood, plastics and wall tile Model Number: RZ-BITSET1 ...