Hole Saw, Primary Saw Application Specialty, Tooth Material Diamond Grit, Arbor Design Not Included, Saw Dia. 1-3/8 In., Max. Cutting Depth 1-1/2 In., Application Granite, Tile, Stone, Glass, Fiberglass, Fiber Cement Board, Teeth per Inch 4, Pitch Style Straight Pitch, Thread Size 5/8 In.-18, Arbor Hole 5/8-18, Replacement Arbor No. Mfr. No. 49-56-7135, Pilot Drill Size 1/4 In. dia. x 2 In.L, Replacement Pilot Drill No. Mfr. No. 49-56-8025