Hyde® Utility Knife, Heavy Duty, series: SwitchBlade®, 1/2 in Blade Width, Round Point Blade, Die Cast Zinc Alloy Blade, 1 Number of Blades Included, 3-1/2 in L Handle. Hyde® 42066 SwitchBlade® Heavy Duty Utility Knife, 1/2 in W Round Point Blade, Die Cast Zinc Alloy Blade, 1 Blades Included