{"product_id":"klein-tools-640-1-2-hollow-shaft-nut-driver-1-2-inch","title":"Klein Tools 640-1\/2 Hollow Shaft Nut Driver 1\/2 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KLEIN TOOLS 640-1\/2 is a hollow shaft nut driver designed for fastening hex nuts in electrical, HVAC, and general trade applications. The hollow shaft design allows the driver to seat over long threaded studs or bolts that extend beyond the nut face, making it useful in panel work and equipment assembly. The 1\/2-inch hex drive fits standard 1\/2-inch nuts, and the 3-inch shank provides reach in confined spaces. The shank is heat-treated, tempered, and chrome-plated steel for durability and corrosion resistance. A cushion-grip plastic handle in red provides torque comfort during extended use.\u003c\/p\u003e\u003cp\u003eThis nut driver is suited for residential and commercial electrical work, HVAC equipment servicing, and light industrial maintenance. Electricians commonly use hollow shaft nut drivers when working inside load centers, disconnect boxes, and control panels where bolt threads protrude through the nut. The 1\/2-inch size is a standard fastener size on electrical enclosures and HVAC cabinet hardware. The cushion-grip handle reduces hand fatigue during repetitive fastening tasks.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHollow shaft passes over extended bolt threads for full nut seating\u003c\/li\u003e\n\u003cli\u003e1\/2-inch hex drive fits standard 1\/2-inch nuts\u003c\/li\u003e\n\u003cli\u003e3-inch shank length for reach in recessed or tight spaces\u003c\/li\u003e\n\u003cli\u003eHeat-treated, tempered, chrome-plated steel shank for strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eCushion-grip red handle for comfort and torque control\u003c\/li\u003e\n\u003cli\u003ePlastic-dipped shank finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 1\/2-inch hollow shaft nut driver suitable for electrical panel work, HVAC equipment service, and general trade fastening applications requiring clearance over protruding bolt threads.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eDe-energize all electrical equipment and follow lockout\/tagout procedures before servicing panels or equipment interiors. This tool is intended for manual hand use only and should not be used with power drivers or impact tools. NEC guidelines require appropriate personal protective equipment when working inside energized or recently de-energized enclosures.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 1\/2 inch hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Material\u003c\/strong\u003e: Heat-treated tempered chrome-plated steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Material\u003c\/strong\u003e: Plastic cushion grip\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Color\u003c\/strong\u003e: Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Type\u003c\/strong\u003e: Hollow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.39 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 092644650277\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KLEIN TOOLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 640-1\/2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":51347668369714,"sku":"640-1\/2","price":129.07,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310503208.jpg?v=1782110970","url":"https:\/\/voomisupply.com\/products\/klein-tools-640-1-2-hollow-shaft-nut-driver-1-2-inch","provider":"Voomi Supply","version":"1.0","type":"link"}