{"product_id":"irwin-ir43805-hex-shank-drill-extension-18-inch","title":"Irwin IR43805 Hex Shank Drill Extension 18 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IRWIN IR43805 is a heavy-duty hex shank drill extension designed for use with auger-style drill bits in deep-bore applications. It features a 5\/16-inch hex tool end and a 23\/64-inch straight mounting end, with an overall length of 18 inches to reach into wall cavities, framing lumber, and other confined spaces. The extension is secured by a double set screw mechanism for a firm, slip-resistant connection during high-torque drilling. Electricians and carpenters commonly reach for this type of extension when running wire or driving long auger bits through structural members where a standard drill chuck cannot reach.\u003c\/p\u003e\n\u003cp\u003eThis drill extension is suited for residential and light commercial rough-in work, particularly where long auger bits must be driven through plates, joists, or studs. It allows a minimum hole diameter of 11\/16 inch to pass through on extension, making it practical for drilling clearance holes for conduit, cable, or pipe. The hex tool end provides positive engagement with compatible hex-shank auger bits, reducing bit walkout during extended drilling runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e18-inch overall length extends reach into wall cavities and deep framing members\u003c\/li\u003e\n  \u003cli\u003e5\/16-inch hex tool end accepts standard hex-shank auger bits\u003c\/li\u003e\n  \u003cli\u003e23\/64-inch straight mounting end for chuck or driver connection\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty double set screw locks bit securely during high-torque operation\u003c\/li\u003e\n  \u003cli\u003eMinimum hole diameter of 11\/16 inch passes through the extension body\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with 5\/16-inch hex-shank auger drill bits in standard drill chucks or hex-drive adapters. Suitable for residential and light commercial drilling applications requiring extended reach.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis extension is installed by inserting the straight mounting end into the drill chuck and tightening the chuck firmly before use. The bit is secured into the hex tool end via the double set screw using the appropriate hex key before beginning drilling. Always verify the set screw is fully seated and the bit is locked before applying power to the drill. Follow applicable OSHA hand and power tool safety guidelines when operating in overhead or confined-space environments.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool End Size\u003c\/strong\u003e: 5\/16 inches (hex)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting End Size\u003c\/strong\u003e: 23\/64 inches (straight)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Pass-Through Hole Diameter\u003c\/strong\u003e: 11\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBit Retention\u003c\/strong\u003e: Heavy-duty double set screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: IRWIN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: IR43805\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IRWIN","offers":[{"title":"Default Title","offer_id":51343179809074,"sku":"IR43805","price":39.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310499713.jpg?v=1782019235","url":"https:\/\/voomisupply.com\/products\/irwin-ir43805-hex-shank-drill-extension-18-inch","provider":"Voomi Supply","version":"1.0","type":"link"}