Carbide tipped spear style. _x000D__x000D_
3/16in x 70mm. _x000D__x000D_
High quality carbide tip for maximum durability. _x000D__x000D_
1/4in hex shank. _x000D__x000D_
Use water freely for optimum result. _x000D__x000D_
For smooth drilling in ceramic tile, mirror, or glass, marble tile.