Full Punching Set: This hydraulic knockout punch set includes all essentials: 6 round dies (1/2" to 2"/12.7 to 50.8mm), 2 pull rods, hydraulic device, a step drill, and a portable storage case. It's easy to carry and keeps parts well-organized Long-Lasting Build: Our hydraulic knockout hole punch driver kit boasts a heavy-duty, durable structure. Made of heavy-duty alloy steel with a corrosion-resistant black coating, its stable parts handle wear and pressure, ensuring long-term use Enhanced Laser & Units: With function upgrades, this ko tool kit hole making tool has laser scale markings and dual inch-millimeter units. It lets you lock in precise positions fast with just a look, while measurements stay clear and easy to grasp Effortless & Efficient Use: Operating this VEVOR hydraulic knockout punch kit is easy and efficient—upgraded hydraulic head with 10T hydraulic force. Precision threads glide smoothly to save effort, and the ergonomic non-slip curved handle lowers wrist pressure Wide Application: With broad applications and solid punching ability, this hydraulic knockout punch suits low-carbon steel (≤1/8", 11 GA), stainless steel (≤1/16", 16 GA), aluminum, fiberglass, plastic and more, ideal for workshops, job sites, auto repair, electrical installation