Starrett's Deep Cut Plumbers 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''), 29mm (1.1/8''), 38mm (1.1/2''), 44mm (1.3/4''), 57mm (2.1/4'') A1E Extended Length Arbor, A2E Extended Length Quick Hitch Arbor, A12 Arbor Adapter, A014CE Extra Length HSS Pilot Drill