Starrett's Deep Cut Industrial Hole Saw Kit featuring dual pitch hole saws and select accessories. High speed, heat resistant Carbide Steel teeth welded to a durable alloy backing and cap. The saw is exceptionally strong, safe, and shatter resistant. These tools effectively and economically cut a variety of materials including wood, metal, and steel. Kit includes the following: DCH Series 19mm (3/4''), 22mm (7/8''), 25mm (1''), 32mm (1.1/4''), 35mm (1.3/8''), 38mm (1.1/2''), 44mm (1.3/4''), 51mm (2''), 57mm (2.1/4''), 64mm (2.1/2''), 76mm (3''). A1E Extended Length Arbor, A2E Extended Length Quick Hitch Arbor, A5 Arbor Extension.