Item #: 47745542Brand: LenoxModel #: 1772076 Features and Benefits Bi-metal blades feature a toothed edge made from high speed steel (HSS) attached to a flexible steel backing through an electron-beam welding process. This configuration results in a blade that makes precise cuts while resisting breakage. They are used on ferrous and non-ferrous metals. Toothed edge saws are composed of a row of pointed teeth. Common tooth variations include the number of teeth per inch and pitch pattern. Product Specifications Hole Saws; Saw Diameter (mm): 1.50 ; Saw Diameter (Inch): 4-3/4 ; Cutting Depth (Inch): 1-1/2 ; Saw Material: Bi-Metal ; Cutting Edge Style: Toothed Edge ; Material Application: Metals; Wood Saw Diameter (mm) 1.50 Saw Diameter (Inch) 4-3/4 Cutting Depth (Inch) 1-1/2 Saw Material Bi-Metal Cutting Edge Style Toothed Edge Material Application Metals; Wood Pitch Pattern Variable