{"product_id":"klein-tools-impact-extension-31088-6-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 31088 6 In Dual Lock (1\/4 In Hex Shank Quick Release Twist Locking Mechanism Driver Bit Adapter Holder Heavy Duty Kit)","description":"\u003cdiv class=\"product-description\" style=\"font-family: sans-serif; color: #333333; line-height: 1.6; max-width: 900px;\"\u003e\n\u003ch2 style=\"color: #004b87;\"\u003e\u003ca title=\"Link to the Klein Tools homepage.\" href=\"https:\/\/www.1toptools.com\/pages\/klein-tools\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"Klein promotional logo logout\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/KleinStacked-Black.png?v=1774018194\"\u003e\u003c\/a\u003e\u003c\/h2\u003e\n\u003ch2 style=\"color: #004b87; font-family: Arial, sans-serif;\"\u003eKlein Tools 31088 6-Inch Dual-Lock Impact-Rated Bit Extension\u003c\/h2\u003e\n\u003cp\u003eThe Klein Tools 31088 6-Inch Dual-Lock Impact Extension functions as an extended-reach driving holder engineered to lock 1\/4-inch hex power bits into impact drivers and drill chucks during tight-clearance fastening. Measuring 6 in. L x 0.65 in. W x 6 in. H and weighing 0.19 lbs. (3 oz.), this tool incorporates a dual-action retention mechanism combining a push-button quick-release fitting with a secondary mechanical twist lock to stop driver bits from detaching inside deep component cavities. Constructed from heavy-duty alloy steel and anodized 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 recessed electrical boxes, framing studs, and ductwork assemblies.\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eBest Used For:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecessed Fastener Clearance:\u003c\/strong\u003e Driving self-tapping screws and hex bolts inside deep wall cavities, electrical enclosures, and equipment housings up to 6 inches deep.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Torque Bit Retention:\u003c\/strong\u003e Securing 1\/4 in. hex driver bits, spade bits, and nut setters during heavy impact driving where standard ball-detent holders drop bits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGloved Quick-Change Operations:\u003c\/strong\u003e Swapping driver bits rapidly on active construction sites utilizing high-friction textured lock collars designed for gloved hands.\u003c\/li\u003e\n\u003c\/ul\u003e\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 Integrates a primary quick-release push button with a secondary twist-lock collar to guarantee absolute bit retention under intense vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpact-Rated Alloy Steel Construction:\u003c\/strong\u003e Heat-treated alloy steel core shaft withstands repetitive rotational torque spikes from high-torque 1\/4 in. power impact drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Friction Tactile Collar Grips:\u003c\/strong\u003e Ridged quick-release collar 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 Finish:\u003c\/strong\u003e Corrosion-resistant black oxide surface coating shields internal lock components from rust and mechanical wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Extension Geometry:\u003c\/strong\u003e Concentric shaft alignment minimizes rotational wobble at high RPM speeds to protect screw head recesses from stripping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e(1) Klein Tools 31088 6-Inch Dual-Lock 1\/4-Inch Hex Impact Bit Extension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"867\" height=\"488\" src=\"https:\/\/www.youtube.com\/embed\/hmUKWhThgNs\" title=\"Klein Tools Manufacturing\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\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\u003ctbody\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;\"\u003e31088\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;\"\u003e6-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;\"\u003e6.0 in. (15.2 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;\"\u003e0.19 lbs. (3.0 oz. \/ 85 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;\"\u003e00092644310881\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 20px; padding: 10px; background-color: #f9f9f9; border-left: 4px solid #004b87;\"\u003e\u003cstrong\u003ePro-Tip:\u003c\/strong\u003e When driving long structural wood screws or backing out stuck fasteners from dense timber, push the bit into the receiver, engage the quick-release lock, and turn the orange knurled collar clockwise until it stops. Twisting the collar locks the internal sleeve pin firmly in place, completely eliminating bit disconnects even when pulling back out of sticky pilot holes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":52718495170871,"sku":"31088","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Klein_Tools_Impact_Extension_31088_6_In_Dual_Lock_1_4_In_Hex_Shank_Quick_Release_Twist_Locking_Mechanism_Driver_Bit_Adapter_Holder_Heavy_Duty_Kit.jpg?v=1784903959","url":"https:\/\/www.1toptools.com\/products\/klein-tools-impact-extension-31088-6-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"}