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The GREENLEE 60179 is a 4.12-inch square knockout die set designed for use with compatible Greenlee hydraulic and manual knockout punch drivers. This die set produces clean, precise square knockouts in electrical enclosures, panels, and junction boxes. It is a core tool component for electricians working on commercial and industrial installations where square conduit entries or large square openings are required. The set is built to handle repeated production use and is sized for 4.12-inch square cutouts.
This die set is used in electrical rough-in and panel work where square knockouts are specified. Typical applications include installation of square conduit fittings, large square grommets, and custom panel openings in steel enclosures and electrical boxes. Licensed electricians and electrical contractors are the primary users of this tooling.
Designed as an OEM-style replacement or supplemental die for use with Greenlee knockout punch driver systems that accept standard die sets. Confirm driver compatibility with the specific punch driver model before ordering.
This tooling is installed and operated by licensed electricians. De-energize all panels and enclosures before beginning any knockout work. Follow the knockout driver manufacturer's operating instructions and applicable NEC guidelines for enclosure penetration and fitting installation. Inspect the die set before each use for wear or damage that could affect cut quality.
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