Hole Saw Product Grouping: Hole Saws, Item: Hole Saw, Primary Saw Application: Wood, Saw Dia.: 5-1/2", Max. Cutting Depth: 1-1/2", Arbor Design: Built-In, Tooth Material: Bi-Metal, Teeth per Inch: 5, Shank Size: 7/16" Hex, Pilot Drill Size: 1/4" dia. X 4-5/16" L, Replacement Pilot Drill No.: Mfr. No. TACPD4, Application: Wood, Plastic, Nail-Embedded Wood, Plywood, Pipe, Stainless Steel and Machinable Metal