Standard Round Knockout Punches – Electrical Knockout Punch The Standard Round Knockout Punches by Greenlee are designed for creating clean, precise holes in mild steel, aluminum, fiberglass, and plastic. These punch units are complete assemblies consisting of punch, die, and draw stud, suitable for use with battery-powered, hydraulic, ratchet, or manual drivers. Ideal for electrical distributors and switchgear suppliers, these punches facilitate efficient conduit and pipe hole preparation in electrical installations. Specifications Capacity: Mild steel up through 10 gauge (3.5 mm) Includes: Punch, Die, and Draw Stud Hole Sizes: Matches outside diameter of US conduit sizes (e.g., 1/2" conduit punch makes a 7/8" hole) Operation: Compatible with battery-powered, hydraulic, ratchet, or manual drivers Weight: 6.53 lb Dimensions: 8.95" Length x 7.45" Width x 5.45" Height Made in USA: Yes Manufacturer: Greenlee Manufacturer Part #: 50254030 Features Complete unit with punch, die, and draw stud for fast and accurate hole punching Designed for use with multiple driver types including battery-powered and manual Produces clean, burr-free knockouts with slugs falling free for easy removal Suitable for electrical wiring and conduit installation applications Durable construction ensuring reliable performance in industrial and commercial electrical work Downloads & Links Spec Sheet Spec Sheet
