H4736 Hole Saw Saw Dia 13/16 In. Bi-Metal Max Cutting Depth 1-1/2 In. Teeth Variable Pitch Teeth per Inch 4/6 Arbor Hole 1/2-20 Use Arbor 4XJ17 4XJ18 4XJ19 4XJ22 Thread Size 1/2-20 Pilot Drill Included With Arbor Drill Size 1/4 in Dia x 3-1/16 in L Cut Holes in Wood Plastic Nail-embedded Wood Plywood Pipe Stainless Steel Machinable Metal