{"product_id":"klein-tools-impact-socket-nrhd4-6-in-1-square-utility-wrench-7-16-hex-1-2-drive-coaxial-spring-loaded-lineman-pole-hardware-bolt-tightening","title":"Klein Tools Impact Socket NRHD4 6-in-1 Square Utility Wrench (7\/16 Hex 1\/2 Drive Coaxial Spring Loaded Lineman Pole Hardware Bolt Tightening)","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=\"text-align: center;\"\u003e\u003cspan style=\"color: #004b87;\"\u003eKlein Tools NRHD4 6-in-1 Square Lineman Impact Socket Wrench\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Klein Tools NRHD4 6-in-1 square impact socket tightens utility pole lag screws, installs crossarm braces, adjusts guy wire hardware, and spins nuts onto long threaded rods without manual socket changeouts. Engineered with two nested coaxial spring-loaded sockets and integrated alignment slots, this heavy-duty 2.0-lb impact attachment fits 3\/4-inch, 13\/16-inch, 1-inch, and 1-1\/8-inch square nuts along with utility hardware on 1\/2-inch, 5\/8-inch, and 3\/4-inch pole bolts. Featuring a 6.0-inch hollow shaft with a 13\/16-inch internal diameter for clearing extended all-thread studs, an ASME B107.2 impact steel rating, and a 7\/16-inch hex quick-change adapter with cross-hole retention, it equips power utility linemen, distribution technicians, and telecom contractors with hands-free aerial fastening efficiency.\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eBest Used For:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUtility Pole Hardware Installation \u0026amp; Removal:\u003c\/strong\u003e Fastening square nuts and crossarm mounting bolts across 1\/2-inch, 5\/8-inch, and 3\/4-inch utility pole lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Threaded Rod and Stud Driving:\u003c\/strong\u003e Passing long all-thread studs through the 6-inch hollow barrel to torque deep utility fasteners continuously without bottoming out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEye-Bolt and J-Hook Hardware Alignment:\u003c\/strong\u003e Tightening and loosening curved utility pole suspension hardware and ground attachments using built-in alignment slots.\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\u003eHands-Free Coaxial Socket Stepping:\u003c\/strong\u003e Nested spring-loaded sleeves depress automatically under applied forward pressure to switch between four square socket profiles instantly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Pole Hardware Alignment Slots:\u003c\/strong\u003e Machined high-torque slots engage and drive utility pole eyelet fasteners, J-hooks, and grounding hardware without accessory tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-Inch Deep Hollow Barrel:\u003c\/strong\u003e 13\/16-inch inside diameter hollow pass-through body accommodates extended bolt shanks and long all-thread rods during pole framing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Impact-Grade Steel:\u003c\/strong\u003e Hardened alloy steel construction meets ASME B107.2 structural standards to absorb continuous cyclic hammer blows from utility impact guns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Hole Adapter Retention Pin:\u003c\/strong\u003e Positive cross-pin locking design prevents the 7\/16-inch quick-change adapter and socket from separating during aerial bucket operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Visibility Double-Line Sizing Bands:\u003c\/strong\u003e Color-coded alignment bands allow aerial line workers to identify socket sizes and drive slots quickly in dim working conditions.\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 NRHD4 6-in-1 Square Lineman Impact Socket Wrench\u003c\/li\u003e\n\u003cli\u003e(1) 7\/16\" Hex to 1\/2\" Square Quick-Change Impact Drive Adapter (Cat. No. NRHDA4)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"1157\" height=\"651\" src=\"https:\/\/www.youtube.com\/embed\/7Wdb3MlJ4DE\" title=\"Impact Sockets\"\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 #dcdcdc;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #fff0f3;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003eKlein Tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003eNRHD4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f3;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eProduct Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e6-in-1 Square Lineman Impact Socket Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eSupported Square Socket Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e3\/4\", 13\/16\", 1\", and 1-1\/8\" Square (4-Point)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f3;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eUtility Hardware Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e1\/2\", 5\/8\", and 3\/4\" Utility Pole Hardware \u0026amp; Lag Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eDrive System Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e7\/16\" Hex Quick-Change \u0026amp; 1\/2\" Square Drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f3;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eHollow Barrel Clearance Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e6.00 inches (15.24 cm \/ 152.4 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eInternal Barrel Pass-Through Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e0.8125 inches (13\/16 in \/ 20.64 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f3;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eSocket Switching Mechanism\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003eDual Coaxial Spring-Loaded Self-Adjusting Sleeves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eManufacturing Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003eASME B107.2 Impact Tool Specifications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f3;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eOverall Tool Dimensions (L x W x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e7.00 in x 2.00 in x 2.00 in (17.8 cm x 5.1 cm x 5.1 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eOperating Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e2.00 lbs (32.0 oz \/ 907.0 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f3;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e\u003cstrong\u003eUPC Barcode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #dcdcdc;\"\u003e092644650499\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 Push the impact socket straight onto the fastener to depress the outer sleeve when engaging smaller 3\/4-inch or 13\/16-inch hardware; the internal spring immediately steps the tool down without requiring linemen to remove insulated gloves or swap heavy sockets in aerial bucket trucks.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":52892320760119,"sku":"NRHD4","price":219.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Klein_Tools_Impact_Socket_NRHD4_6-in-1_Square_Utility_Wrench_7_16_Hex_1_2_Drive_Coaxial_Spring_Loaded_Lineman_Pole_Hardware_Bolt_Tightening.jpg?v=1787596095","url":"https:\/\/www.1toptools.com\/products\/klein-tools-impact-socket-nrhd4-6-in-1-square-utility-wrench-7-16-hex-1-2-drive-coaxial-spring-loaded-lineman-pole-hardware-bolt-tightening","provider":"1 Top Tools","version":"1.0","type":"link"}