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The KLEIN TOOLS 53858 is a knockout die designed to punch a 1.951-inch diameter hole for 1-1/2 inch conduit trade size installations. Used with compatible knockout punch drivers, this die delivers clean, accurate cutouts in electrical enclosures, panels, junction boxes, and sheet metal. It is a standard component in a knockout set used by licensed electricians and electrical contractors working on commercial and residential wiring projects. The die pairs with a matching punch and draw stud to complete the knockout operation without the need for a drill bit or hole saw.
This knockout die is suited for electrical work requiring 1-1/2 inch conduit entries into metal enclosures, including distribution panels, pull boxes, and equipment housings. It is typically used in new construction, renovation, and maintenance work where conduit runs terminate at or enter electrical enclosures. The 1.951-inch knockout diameter meets the standard dimensional requirement for 1-1/2 inch trade size conduit fittings.
Designed as an OEM-style replacement or supplemental die for knockout punch sets that accept standard trade-size dies for 1-1/2 inch conduit applications. Consult your knockout driver documentation to confirm die thread and driver compatibility before use.
This die is installed by a licensed electrician using a knockout punch driver, draw stud, and matching punch. De-energize all circuits and verify zero voltage in any enclosure before beginning knockout work. Follow NEC requirements for conduit entry spacing and enclosure integrity. Do not use the die on material thicker than the rated capacity of the matching punch driver.
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