Is there any information on the Diamond Tile Bits that DEWALT offers?

For information on the bits you can go to the Diamond Tile Bit Page . There is a water feed slot on all the tile bits except for the 3/16" DW5570. The length of all the bits is 2.17". The shank of the bits is 3/8". The cutting depth is 1.18" The Rockwell hardness is A Scale 60ra - 75ra