3 in. Diamond Grit Hard Tile Jigsaw BladeDIABLO's diamond grit jig saw blades deliver extreme durability and superior cutting life in abrasive materials such as glass and hard tile. High performance diamond grit provides longer life versus standard jig saw blades. The optimized blade design and Perma SHIELD non stick coating reduces heat and pitch build up for fast and clean cuts. T shank design fits all combo and most U shank cordless and corded jig saws. Optimized blade design reduces heat