{"product_id":"greenlee-745h-2-1-2-knockout-punch-unit-2-914-in-round","title":"Greenlee 745H-2-1\/2 Knockout Punch Unit 2.914 in Round","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GREENLEE 745H-2-1\/2 is a round knockout punch unit designed for cutting clean, precise holes in electrical enclosures, panel boxes, and conduit entry points. It produces a 2.914-inch diameter hole through mild steel up to 10 gauge and is compatible with battery-operated and hydraulic knockout drivers. The punch set includes the die, draw stud, and punch, providing everything needed to complete the knockout in a single kit. Licensed electricians and electrical contractors rely on this type of tooling for fast, burr-minimizing hole production during panel rough-in and enclosure work.\u003c\/p\u003e\u003cp\u003eThis knockout punch unit is suited for residential and commercial electrical work where consistent, code-acceptable conduit entry holes are required in steel enclosures and junction boxes. The 2.914-inch hole diameter accommodates standard 2-1\/2-inch conduit trade size fittings. It is used with compatible GREENLEE battery or hydraulic punch drivers in both new construction and retrofit applications where drilling alone would not produce a clean, round opening.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eProduces a 2.914-inch diameter round knockout hole in a single operation\u003c\/li\u003e\n\u003cli\u003eRated for mild steel up to 10 gauge maximum capacity\u003c\/li\u003e\n\u003cli\u003eCompatible with battery-operated and hydraulic punch drivers\u003c\/li\u003e\n\u003cli\u003eKit includes die, draw stud, and punch for complete out-of-box use\u003c\/li\u003e\n\u003cli\u003eSteel punch material for durability under repeated hydraulic load cycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with GREENLEE battery-operated and hydraulic knockout drivers that accept standard draw stud tooling. Verify driver compatibility with the specific driver model before use.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified electrician following applicable NEC guidelines for conduit entry and enclosure work. De-energize all circuits and confirm the enclosure is isolated from power before beginning any knockout operation. Secure the workpiece to prevent movement during punching, and use proper eye and hand protection when operating hydraulic or battery punch equipment. Do not exceed the rated material gauge capacity of the punch to avoid tool damage or incomplete cuts.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePunch Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePunch Type\u003c\/strong\u003e: Knockout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 2.914 inches (74 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Capacity\u003c\/strong\u003e: 10 gauge mild steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Method\u003c\/strong\u003e: Battery or Hydraulic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePunch Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Die, Draw Stud, Punch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 9 inches L x 7 inches W x 5 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.082 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GREENLEE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 745H-2-1\/2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GREENLEE","offers":[{"title":"Default Title","offer_id":51542403809586,"sku":"745H-2-1\/2","price":767.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a2715012e0c014ca732180926eb31151.jpg?v=1785899830","url":"https:\/\/voomisupply.com\/products\/greenlee-745h-2-1-2-knockout-punch-unit-2-914-in-round","provider":"Voomi Supply","version":"1.0","type":"link"}