{"product_id":"klein-tools-impact-extension-31089-12-in-dual-lock-1-4-in-hex-shank-quick-release-twist-locking-mechanism-driver-bit-adapter-holder-heavy-duty-kit","title":"Klein Tools Impact Extension 31089 12 In Dual Lock (1\/4 In Hex Shank Quick Release Twist Locking Mechanism Driver Bit Adapter Holder Heavy Duty Kit)","description":"\u003cdiv style=\"font-family: sans-serif; color: #333333; line-height: 1.6; max-width: 900px;\" class=\"product-description\"\u003e\n\u003ch2 style=\"color: #004b87;\"\u003e\u003ca href=\"https:\/\/www.1toptools.com\/pages\/klein-tools\" title=\"Link to the Klein Tools homepage.\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/KleinStacked-Black.png?v=1774018194\" alt=\"Klein promotional logo logout\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/a\u003e\u003c\/h2\u003e\n\u003ch2 style=\"color: #004b87; font-family: Arial, sans-serif;\"\u003eKlein Tools 31089 12-Inch Dual-Lock Impact-Rated Bit Extension\u003c\/h2\u003e\n\n\u003cp\u003eThe Klein Tools 31089 12-Inch Dual-Lock Impact Extension functions as an extra-long reach driving adapter engineered to lock 1\/4-inch hex power bits into impact drivers and drill chucks during deep-clearance fastening. Measuring 12 in. L x 0.65 in. W x 12 in. H and weighing 0.31 lbs. (5 oz.), this tool incorporates a dual-action retention mechanism combining a push-button quick-release mechanism with a secondary mechanical twist lock to prevent driver bits from detaching inside deep wall cavities. Constructed from heavy-duty alloy steel and aluminum with a black oxide coating, this 1\/4 in. hex shank shaft allows electricians, HVAC technicians, and carpenters to transfer high-torque rotation across deep stud bays, recessed junction boxes, and elevated ceiling channels.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #004b87;\"\u003eBest Used For:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeep Recessed Fastener Reach:\u003c\/strong\u003e Driving screws, spade bits, and hex fasteners inside deep wall cavities, floor joists, and ceiling drop channels up to 12 inches deep.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Torque Bit Security:\u003c\/strong\u003e Locking 1\/4 in. hex driver bits, spade drills, and nut setters during heavy impact driving where standard ball-detent holders release bits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGloved Quick-Change Operations:\u003c\/strong\u003e Swapping driver bits rapidly on active construction sites using high-friction textured lock collars designed for gloved hands.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #004b87;\"\u003eKey Performance \u0026amp; Safety Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Locking Retention System:\u003c\/strong\u003e Combines a primary quick-release push button with a secondary twist-lock collar to ensure positive bit engagement under intense vibration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImpact-Rated Alloy Steel Metallurgy:\u003c\/strong\u003e Heat-treated alloy steel core shaft withstands repetitive rotational torque spikes from high-torque power impact drivers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Friction Tactile Collar Grips:\u003c\/strong\u003e Ridged quick-release button and knurled twist lock provide positive manual leverage when operating with thick work gloves.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal 1\/4-Inch Hex Interface:\u003c\/strong\u003e Accurately accepts all standard 1\/4 in. hex power bits, insert bits, spade drills, and nut driver attachments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlack Oxide Protective Coating:\u003c\/strong\u003e Corrosion-resistant black oxide finish shields internal lock components from rust and mechanical abrasion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBalanced Extension Geometry:\u003c\/strong\u003e Concentric shaft alignment minimizes rotational wobble across full 12 in. lengths to prevent screw head cam-out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #004b87;\"\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e(1) Klein Tools 31089 12-Inch Dual-Lock 1\/4-Inch Hex Impact Bit Extension\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #004b87;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; font-family: Arial, sans-serif;\"\u003e\n  \u003ctr style=\"background-color: #fff5f7;\"\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eBrand Manufacturer\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eKlein Tools®\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eModel Part Number OEM SKU\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e31089\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #fff5f7;\"\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eTool Classification Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e12-Inch Dual-Lock Quick-Change Impact Bit Extension\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003ePrimary Drive Shank Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1\/4 in. Quick-Connect Hex Power Shank\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #fff5f7;\"\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eBit Receiver Fitting Diameter\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1\/4 in. Internal Hex Chuck Receiver\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eBit Locking Mechanism\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eDual-Action Quick-Release Push-Button with Twist Lock\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #fff5f7;\"\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eImpact Torque Rating\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eImpact Rated (Suitable for High-Torque Impact Drivers)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eCore Metallurgy Materials\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eHeat-Treated Alloy Steel Shaft with Aluminum Lock Ring\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #fff5f7;\"\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eSurface Protective Finish\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eBlack Oxide Shaft Finish with Orange Anodized Sleeve\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eOverall Tool Shaft Length\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e12.0 in. (30.5 cm)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #fff5f7;\"\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eMaximum Lock Collar Width\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e0.65 in. (1.7 cm) Outer Diameter\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eHigh-Voltage Insulated Frame\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eNo (Uninsulated - do not use on energized electrical circuits)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #fff5f7;\"\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eTotal Piece Count\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1 Piece\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eNet Tool Weight\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e0.31 lbs. (5.0 oz. \/ 142 g)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #fff5f7;\"\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eGlobal Trade Item Number GTIN\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e00092644310898\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp style=\"margin-top: 20px; padding: 10px; background-color: #f9f9f9; border-left: 4px solid #004b87;\"\u003e\u003cstrong\u003ePro-Tip:\u003c\/strong\u003e When drilling cable entry holes through deep wood framing studs or pulling long spade bits back out of timber, twist the orange collar firmly to activate the secondary lock. The mechanical sleeve pin prevents the spade bit shank from binding and pulling free from the extension chuck inside blind wall cavities.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":52718542324023,"sku":"31089","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Klein_Tools_Impact_Extension_31089_12_In_Dual_Lock_1_4_In_Hex_Shank_Quick_Release_Twist_Locking_Mechanism_Driver_Bit_Adapter_Holder_Heavy_Duty_Kit.jpg?v=1784910620","url":"https:\/\/www.1toptools.com\/products\/klein-tools-impact-extension-31089-12-in-dual-lock-1-4-in-hex-shank-quick-release-twist-locking-mechanism-driver-bit-adapter-holder-heavy-duty-kit","provider":"1 Top Tools","version":"1.0","type":"link"}