Roto Zip TC4 1/8-inch tegelsnijdende hardmetalen ritsbits, 4-pack, zilver

Brilliant

these fit a dremmel rotary tool and work perfectly on ceramic tile. They won't make even a dent in porcelain, marble etc. but for soft ceramic tiles they are great and last a long time. Easy to make any shaped cut.

I've use a lot of tile drill bits, these bits are the best I've every used.

A bit too small.

Paired a DEWALT rotzip tool this thing just eats though hardie board making my life so much easier. Firm pressure and it will really cut like butter. These have saved my a fortune in hole saws.