Tools and Equipment
Greenlee Speed Punch knockout system can punch up to 2-in. conduit size
By Alyssa Dalton
June 16, 2014 – Greenlee has introduced more knockout sizes for stainless steel, mild steel and oiltight pushbuttons for its Speed Punch knockout system.
Users can now punch up to 2-in. conduit size in 10 gauge (3.5 mm) stainless steel in six U.S. conduit sizes from 1/2-in. to 2-in., plus 1-7/32-in. (30.5 mm) diameter. There are also seven metric size punches, made from mild steel, from ISO-16 to ISO-63 (16.2mm to 63.5mm) available for mild steel, aluminum, fiberglass and plastic. Describing it as the fastest knockout system on the market, Greenlee says the Speed Punch’s no-thread punch design provides up to three times faster setup and disassembly compared to standard threaded knockouts.