Hole Cutter; Capacity 0.054" Aluminum, 0.042" Copper, 0.03" Stainless Steel, 0.04" Galvanized Steel, 0.036" Mild Steel; Inclusions/Features English/Metric Diameter Gauge; Hole Size 2 to 20" Diameter; Required Accessories Pivot Pin Set, Thrust Bearing, Adjustment sleeve, Gray Casting, Shoe, Screw, Shoe Screw; Weight 22 Oz; Warranty Lifetime Limited