Hitachi 728023 1/4-Inch Diamond Grit With Water Feature Attachment Drill Bit
Glass and tile bit measures 1/4-inches in diameter
Drill bit drills through glass, marble, class 5 porcelain, granite and slate
Constructed of hardened and tempered thin wall alloy steel
Requires water lubrication during use
Comes with a 30-day limited warranty
1/4-inch Diamond Core bit with water feed
Drill through porcelain, marble, slate, and glass
Water feed needed to help keep the material and the bits cool during drilling
Drill up to 30-35 holes per bit depending on the material
Can be used with any cordless drill for flexibility and convenience