{"product_id":"klein-tools-impact-driver-bit-set-33801-proflex-40-piece-s2-steel-1-4-5-16-inch-nut-drivers-3-5-inch-power-bits-modbox-storage-case-holder-kit","title":"Klein Tools Impact Driver Bit Set 33801 ProFlex 40 Piece S2 Steel (1\/4 5\/16 Inch Nut Drivers 3.5 Inch Power Bits MODbox Storage Case Holder 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 33801 ProFlex 40-Piece S2 Steel Impact Driver Bit Set\u003c\/h2\u003e\n\u003cp\u003eThe Klein Tools 33801 ProFlex 40-Piece Impact Driver Bit Set serves as a heavy-duty mechanical driving kit engineered to install and remove threaded hardware across commercial electrical panels, HVAC ducting, and structural framing. Stored inside a MODbox-compatible modular organizer case measuring 7 inches long by 3.75 inches wide by 1.75 inches high and weighing 1.08 lbs, this system includes impact-rated S2 tool steel bits with energy-absorbing ProFlex torsion zones, extended 3.5 inch power bits, magnetic nut drivers, a 3\/8 inch square impact adapter, and a 3 inch magnetic bit holder extension. Designed to withstand rotational torque spikes, this multi-drive set enables electricians, HVAC installers, and carpenters to transfer high torque directly to fasteners using 1\/4 inch power impact drivers without stripping screw heads or snapping bit tips.\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eBest Used For:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Torque Impact Screwdriving:\u003c\/strong\u003e Fastening self-tapping sheet metal screws, wood framing lag bolts, and structural cabinet hardware using 1\/4 inch power impact drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Deep Reach Fastening:\u003c\/strong\u003e Reaching deep electrical junction boxes and narrow stud bays using extended 3.5 inch #2 Phillips and #2 Robertson square bits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHex Nut and Socket Driving:\u003c\/strong\u003e Driving 1\/4 inch and 5\/16 inch hex sheet metal screws or adapting to 3\/8 inch square drive impact sockets for structural bolt assembly.\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\u003eProFlex Torsion Zone Recoil System:\u003c\/strong\u003e Specialized S2 steel bit shank geometry flexes under peak impact torque loads to absorb stress forces and extend bit life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpact-Rated S2 Tool Steel:\u003c\/strong\u003e Heat-treated alloy steel construction resists tip wear, rounding, and shearing under high-torque power tool applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended 3.5 Inch Power Bits:\u003c\/strong\u003e Features extended 3.5 inch #2 Phillips and #2 Robertson square bits for direct clearance in deep, hard-to-reach work areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal Chamfer Magnetic Nut Drivers:\u003c\/strong\u003e 1\/4 inch and 5\/16 inch power nut drivers feature reduced internal hex chamfering to maximize surface contact on thin hex fasteners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 Inch Magnetic Bit Holder Extension:\u003c\/strong\u003e High-strength permanent magnet retains 1\/4 inch hex insert bits and holds metal fasteners securely during one-handed starting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMODbox Compatible Modular Storage Case:\u003c\/strong\u003e Rugged impact-resistant storage box features steel hinge pins, a stay-shut front latch, and stackable interlocking feet.\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) 3 Inch Stainless Steel Magnetic Bit Extension Holder\u003c\/li\u003e\n\u003cli\u003e(1) 3\/8 Inch Square Drive Impact Adapter\u003c\/li\u003e\n\u003cli\u003e(2) Magnetic Power Nut Drivers (1\/4 inch, 5\/16 inch)\u003c\/li\u003e\n\u003cli\u003e(2) 3.5 Inch Power Bits (#2 Phillips, #2 Robertson Square)\u003c\/li\u003e\n\u003cli\u003e(3) Phillips Bits (#1, #2, #3)\u003c\/li\u003e\n\u003cli\u003e(3) Slotted Bits (3\/16 inch, 1\/4 inch, 5\/16 inch)\u003c\/li\u003e\n\u003cli\u003e(3) Square Bits (#1, #2, #3)\u003c\/li\u003e\n\u003cli\u003e(5) TORX® Bits (T15, T20, T25, T27, T30)\u003c\/li\u003e\n\u003cli\u003e(20) Assorted Standard Insert Bits\u003c\/li\u003e\n\u003cli\u003e(1) MODbox™ Compatible Stackable Organizer Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"872\" height=\"490\" src=\"https:\/\/www.youtube.com\/embed\/3ZCqCSCw97w\" title=\"The Name on the Tools is Our Reputation\"\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;\"\u003e33801\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 Kit Classification Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e40-Piece ProFlex S2 Steel Impact Driver Bit Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eSystem Compatibility Platform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1\/4 inch Impact Drivers, Drills \u0026amp; MODbox™ System\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\u003eCore Metallurgy Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eImpact-Rated S2 Tool Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eBit Shank Stress Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eProFlex Energy-Absorbing Torsion Zone Technology\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\u003ePrimary Drive Shank Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1\/4 inch Quick-Connect Hex Power Shank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eIncluded Power Nut Driver Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1\/4 inch and 5\/16 inch Magnetic Nut Drivers\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\u003eIncluded Socket Adapter Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1\/4 inch Hex to 3\/8 inch Square Drive Impact Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eIncluded Extended Power Bits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e3.5 inch #2 Phillips and 3.5 inch #2 Robertson Square\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\u003eIncluded Phillips Tip Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e#1, #2, #3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eIncluded Slotted Tip Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e3\/16 inch, 1\/4 inch, 5\/16 inch\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\u003eIncluded Square Robertson Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e#1, #2, #3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eIncluded TORX® Star Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eT15, T20, T25, T27, T30\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\u003eFastener Magnetization\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eYes (3 inch Bit Holder \u0026amp; Magnetic Power Nut Drivers)\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 Kit Piece Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e40 Pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eModular Storage Case Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e7.0 inches L x 3.75 inches W x 1.75 inches H (17.8 x 9.5 x 4.4 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\u003eAssembled Net Package Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1.08 lbs (0.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\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;\"\u003e00092644338014\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 screws into hard timber framing or dense sheet metal studs, switch to the extended 3.5 inch #2 Phillips or square power bit. The added length eliminates the need for bulky bit chuck extensions in tight corners while providing direct sightlines along the screw axis to prevent off-center cam-out.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":52718745321783,"sku":"33801","price":24.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Klein_Tools_Impact_Driver_Bit_Set_33801_ProFlex_40_Piece_S2_Steel_1_4_5_16_Inch_Nut_Drivers_3.5_Inch_Power_Bits_MODbox_Storage_Case_Holder_Kit.jpg?v=1784911216","url":"https:\/\/www.1toptools.com\/products\/klein-tools-impact-driver-bit-set-33801-proflex-40-piece-s2-steel-1-4-5-16-inch-nut-drivers-3-5-inch-power-bits-modbox-storage-case-holder-kit","provider":"1 Top Tools","version":"1.0","type":"link"}