I had bought these at Harbor Freight but couldn't find them on-line until now. They work fine, although probably not as good as the more expensive ones. I have seen several prices for the package of 5, $6 was the highest.
5 Piece Diamond Mini-Cutting Discs
Cut glass, ceramic, even carbide
Useful in tight places and for flush cutting
Industrial diamonds will last longer and cut better than other abrasives
Nickel bonded diamond
1/8" shanks, 13/16" diameter discs; 80 grit; 22,000 RPM max
ITEM 31501-7VGA
http://www.harborfreight.com

