Hole Saw Type Diamond Grit Saw Dia 1-1/4 In. Construction Diamond Grit Max Cutting Depth 1-1/2 In. Teeth Grit Arbor Hole 5/8-18 Use Arbor Mfr No 49-56-7135 Thread Size 5/8-18 Pilot Drill Mfr No 49-56-8025 Drill Size 1-1/4 in Dia x 2 In.L Application Tile Slate Glass and Other Abrasive Materials