Hole Saw Product Grouping: Hole Saws, Item: Hole Saw, Primary Saw Application: Metal, Saw Dia.: 3/4", Max. Cutting Depth: 1-5/8", Arbor Design: Not Included, Tooth Material: High Speed Steel, Teeth per Inch: 4/5, Tooth Material Grade: Matrix II, Thread Size: 1/2"-20, Replacement Arbor No.: Mfr. No. 49-56-7210, 49-56-7240, 49-56-7250, or 49-56-9100, Shank Size: 3/8" Hex, 7/16" Hex, Pilot Drill Size: 1/4" dia. x 3-1/2" L, Replacement Pilot Drill No.: Mfr. No. 49-56-8000, 49-56-8010, Application: Mild Steel, Stainless Steel, Nail Embedded Wood, Plastic, Duct, Pipe, Tube, Nonferrous Metals