Amazon.com: Bonvoisin Electric Hydraulic Hole Puncher Φ1/4"-4/5" 1200W Punching Machine 110V Metal Hole Punch with Carbon Brush 5 Dies for Iron Copper Aluminum Plate Angle Steel : Tools & Home Improvement
IBOSAD Hydraulic Knockout Hole Punch Driver Kit 1/2 to 2 inch Electrical Conduit Hole Cutter Set KO Tool Kit Metal Sheet Puncher - Amazon.com
VEVOR Hydraulic Hole Punching Machine, 6 Ton Manual Hole Digger Punch, Portable Metal Hole Digger Hydraulic Punch Kit with 5 Punch Dies 0.63 to 0.98 Inch for Iron Stainless Steel Aluminum Plates - Amazon.com
New Hydraulic Puncher CH-70, 35T Hydraulic Punch Device Tools Copper/ Aluminum/ Iron Row Punching Machine
VEVOR 10 Ton Hydraulic Knockout Punch Driver Kit Hole Tool 1/2 in. - 2 in. with 6 Dies SD10T240CR2MMKGY6V0 - The Home Depot
Mophorn 10 Ton 1/2" to 2" Hydraulic Knockout Punch Driver Tool Kit Electrical Conduit Hole Cutter Set KO Tool Kit with 6 Dies Hole Complete Tool (Knockout Punches) - Amazon.com
Punch Driver Sets Hand Hydraulic Punch Driver & Accessories
TuffPunch Swivel 12 Ton Hydraulic Knockout Punch Set w/ Slug Splitting Punch Dies 1/2" to 2"
Amazon.com: ATO Handheld Electric Hydraulic Metal Hole Punch, Easy and Fast to Operate, Hydraulic Punch Tool for Steel/Iron/Copper/Aluminum Plate : Tools & Home Improvement