15 Ton 1/2" to 4" Hydraulic Knockout Punch Driver Kit Hole Complete Tool 10 Dies 11 14 Gauge Tool Metal Case Yellow Plastic Grip at the End of the Long Steel Handle Rotatable ON / OFF Switch for safe operation Easy Seating with the Brackets on the Bottom of the Hydraulic Pump Two Metal Clasps to Lock the Kit Firmly Accommodating More Material: Stainless Steel, Aluminum, Steel, Plastic etc.