{"product_id":"irwin-88702-6-inch-drill-bit-extension-1-4-round-shank","title":"Irwin 88702 6 Inch Drill Bit Extension 1\/4 Round Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IRWIN INDUSTRIAL TOOL CO 88702 is a 6-inch drill bit extension designed to add reach when standard bit length falls short. It features a double set screw locking mechanism secured with an included Allen wrench, providing a firm grip on compatible bits during drilling. The 1\/4-inch round shank seats into standard drill chucks and the extension follows bits through holes 5\/8 inches and larger. It is suited for finish carpenters, electricians, plumbers, and general construction trades who need to bore through deep framing, structural members, or wall assemblies where direct tool access is limited.\u003c\/p\u003e\n\u003cp\u003eThis extension is intended for use with 1\/4-inch round shank Speedbor-style bits only. It is pouched for jobsite or van-inventory storage. Typical applications include residential rough-in drilling for electrical or plumbing runs through deep plates and headers, as well as any task requiring extended reach beyond what a standard bit provides. It is not compatible with hex shank or SDS-style bits. The 6-inch model pairs with the 88601 12-inch variant for additional reach options when needed.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e6-inch extension adds reach for deep drilling applications\u003c\/li\u003e\n  \u003cli\u003eDouble set screw design with included Allen wrench for secure bit retention\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch round shank fits standard drill chucks\u003c\/li\u003e\n  \u003cli\u003eFollows bits through holes 5\/8 inches and larger without binding\u003c\/li\u003e\n  \u003cli\u003eCompatible with 1\/4-inch round shank Speedbor bits only\u003c\/li\u003e\n  \u003cli\u003ePouched for organized storage and transport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use exclusively with 1\/4-inch round shank Speedbor bits. Not compatible with hex shank, spade, or SDS-type bit configurations. The 88702 is the 6-inch version; the 88601 is the 12-inch companion model.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and remove bit extensions only when the drill is powered off and the battery or power source is disconnected. Insert the bit fully into the set screw collar and tighten both set screws evenly with the provided Allen wrench before drilling. Inspect the set screws and bit seating before each use to confirm secure engagement. Follow applicable jobsite safety requirements for rotary drilling tools.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtension Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Size\u003c\/strong\u003e: 1\/4 inch round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocking Mechanism\u003c\/strong\u003e: Double set screw with Allen wrench\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Hole Follow-Through Diameter\u003c\/strong\u003e: 5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: EA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.19 pounds\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 INDUSTRIAL TOOL CO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 88702\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IRWIN","offers":[{"title":"Default Title","offer_id":51559035928882,"sku":"88702","price":47.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4c6a95eb2ba1168438da4ff4f6aa0723.jpg?v=1786426433","url":"https:\/\/voomisupply.com\/products\/irwin-88702-6-inch-drill-bit-extension-1-4-round-shank","provider":"Voomi Supply","version":"1.0","type":"link"}