{"product_id":"accupro-685-62844253-drill-chuck-key-k4-3-8-in-pilot","title":"Accupro 685.62844253 Drill Chuck Key K4 3\/8 in Pilot","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 685.62844253 is a K4 drill chuck key designed for use with 3\/4 inch capacity chucks in drill press and machine tool applications. The pilot diameter measures 0.374 inches, conforming to standard K4 key geometry. The part weighs 0.13 pounds and mounts via a 4JT taper socket. Machinists, maintenance technicians, and tool room personnel use this key to tighten and release drill chucks during bit changes. Its compact size and standard pilot spec make it a direct fit for a range of compatible chuck models without modification.\u003c\/p\u003e\n\u003cp\u003eThis chuck key is suited for stationary drill press setups and bench-top drilling machines in industrial, maintenance, and light manufacturing environments. It is a replacement or spare key for shops running compatible chuck models in production or toolroom service. The 3\/4 inch chuck capacity rating ensures the key delivers adequate torque engagement for standard drill press operations. Compatible part numbers include 16N, 18N, 36, 36B, 37KD, 37PD, and 59B chucks as specified by the manufacturer.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eK4 key number for standard pilot engagement geometry\u003c\/li\u003e\n  \u003cli\u003ePilot diameter of 0.374 inches for precise chuck socket fit\u003c\/li\u003e\n  \u003cli\u003eDesigned for use with 3\/4 inch capacity chucks\u003c\/li\u003e\n  \u003cli\u003e4JT taper mount for secure seating in the chuck key socket\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.13 pounds for easy single-hand operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with chuck product numbers 16N, 18N, 36, 36B, 37KD, 37PD, and 59B as stated by the manufacturer. Designed for use with 3\/4 inch capacity chucks using a 4JT mount.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or maintenance technician. Before changing drill bits, power down the drill press and confirm the spindle has come to a complete stop. Insert the chuck key pilot fully into the chuck socket before applying torque to avoid slippage or socket wear. Do not use an extension or additional leverage on the chuck key handle, as over-tightening can damage the chuck jaws.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey Number\u003c\/strong\u003e: K4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Diameter\u003c\/strong\u003e: 0.374 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChuck Capacity\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: 4JT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.13 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 685.62844253\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51744480428338,"sku":"685.62844253","price":34.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/53ef69fe9e07842915d068467b4addd2.jpg?v=1788857140","url":"https:\/\/voomisupply.com\/products\/accupro-685-62844253-drill-chuck-key-k4-3-8-in-pilot","provider":"Voomi Supply","version":"1.0","type":"link"}