{"product_id":"jacobs-30247-drill-chuck-3-8-in-threaded-mount-3-8-24","title":"Jacobs 30247 Drill Chuck 3\/8 in Threaded Mount 3\/8-24","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe JACOBS 30247 is a keyed drill chuck with a 3\/8 inch maximum capacity and a threaded mount configuration. Designed for use with rotary drilling equipment, this chuck accepts a 3\/8-24 inch threaded spindle and uses a KG1 key for tightening. The chuck body is constructed from steel and features a plain bearing design. With a sleeve diameter of 1.22 inches and a closed length of 2.312 inches, this is a compact, dependable tool-holding component suited to both shop and field applications. Installation and service are typically performed by machinists, maintenance technicians, or experienced tradespeople working with drill presses, portable drills, or similar rotary tools.\u003c\/p\u003e\u003cp\u003eThis chuck is appropriate for use in production, maintenance, and repair environments where a standard 3\/8-24 threaded-mount keyed chuck is required. It accommodates bit shanks from a minimum of 0.062 inch up to a maximum of 0.375 inch (3\/8 inch), covering the most common drill bit shank sizes used in light-to-medium duty drilling operations. The keyed design ensures a secure grip on the bit during operation, reducing slippage under load.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/8 inch maximum drill bit capacity accommodates a wide range of standard shank sizes\u003c\/li\u003e\n\u003cli\u003e3\/8-24 threaded mount for direct spindle installation\u003c\/li\u003e\n\u003cli\u003eKeyed operation with KG1 key for positive bit retention\u003c\/li\u003e\n\u003cli\u003eSteel chuck body for durability in production and maintenance environments\u003c\/li\u003e\n\u003cli\u003ePlain bearing design for straightforward, low-maintenance operation\u003c\/li\u003e\n\u003cli\u003eCompact closed length of 2.312 inches minimizes spindle extension\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a threaded-mount replacement chuck for rotary drilling tools and drill presses that accept a 3\/8-24 inch threaded spindle interface.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by threading the chuck onto the compatible 3\/8-24 spindle; ensure the spindle is fully de-energized and the tool is unplugged or locked out before mounting or removing the chuck. Use the KG1 key to secure drill bits firmly before operation. Do not exceed the maximum 3\/8 inch capacity of the chuck, as oversized shanks can damage the jaws and compromise tool retention.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drill Chuck Capacity\u003c\/strong\u003e: 3\/8 inch (0.3750 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Drill Chuck Capacity\u003c\/strong\u003e: 0.062 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Size\u003c\/strong\u003e: 3\/8-24 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Type\u003c\/strong\u003e: Keyed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Number\u003c\/strong\u003e: KG1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type\u003c\/strong\u003e: Plain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChuck Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleeve Diameter\u003c\/strong\u003e: 1.22 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosed Length\u003c\/strong\u003e: 2.312 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Length\u003c\/strong\u003e: 1.85 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.06 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: JACOBS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 30247\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JACOBS CHUCK","offers":[{"title":"Default Title","offer_id":67911348584754,"sku":"30247","price":57.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1bb63f94a84e0572f8739935c73a5feb.jpg?v=1791209983","url":"https:\/\/voomisupply.com\/products\/jacobs-30247-drill-chuck-3-8-in-threaded-mount-3-8-24","provider":"Voomi Supply","version":"1.0","type":"link"}