Different KO Sets and How to Use Them

Learn about different knockout (KO) sets and techniques for cutting into metal boxes, including manual, hydraulic, and battery-operated knockout tools.

Last updated November 19, 2024
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About the video

This lesson explores the various knockout (KO) sets electricians use to cut into metal boxes for conduit attachments. You’ll learn about manual knockout sets, which require physical effort to punch holes, and hydraulic knockout sets that ease the process with hydraulic pressure. The video also introduces advanced battery-operated knockout tools, which offer precise and effortless cutting with features like extra grip and alignment lines. Each method is demonstrated, highlighting the pros and cons, safety considerations, and practical tips for achieving clean, accurate holes in metal boxes for conduit installation. To get started, go to the Lesson Content tab and click on the video.

About the quiz

Each lesson contains a video, and is followed up with a simple quiz. Quizzes review information discussed within the video, with each question providing an answer justification. Helping to reinforce correct answers and helps clarify any mistakes through code citations, excerpts, and explanations, so you can better understand the material.

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