The Speed Punch now comes in large diameter sizes and new kit configurations. Large diameter knockout sizes include 2½-in. 3-in., 3½-in., and 4-in. conduit sizes. In addition, ½-in. conduit size and 17/32-in. diameter knockouts are available, suitable for punching 22-mm and 30-mm panel holes used when installing pushbuttons and switches. The knockouts are also suitable for punching up to 10 gauge (3.5-mm) mild steel and are compatible with a wide range of the company’s battery-powered and hydraulic drivers.


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