About Knockouts

Greenlee was the original manufacturer of knockout equipment for electrical panels. Their knockouts are USA produced in Rockford, IL to ensure quality and length of tool life. The new Speed Punch threadless design drastically reduces the amount of time it takes to punch holes and increases productivity. We carry a range of specialty knockout punches in different punches made only by Greenlee. Shop from battery knockout tools, c-frame punches, slug buster knockouts, slug splitter knockouts for stainless, specialty punches, speed punch knockouts, standard knockouts, stud punch accessories, stud punches