{"product_id":"jacobs-7328dn-drill-chuck-arbor-jt4-mount-5mt-shank","title":"Jacobs 7328DN Drill Chuck Arbor JT4 Mount 5MT Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe JACOBS 7328DN is a taper drill chuck arbor designed to connect a Jacobs Taper 4 (JT4) chuck mount to a No. 5 Morse Taper (5MT) machine spindle. This arbor serves as the mechanical interface between the drill chuck and the spindle bore of a drill press, milling machine, or lathe. It transmits rotational force and maintains axial alignment during drilling operations. The JT4 mount accepts chucks with a matching Jacobs Taper 4 socket, while the 5MT shank seats firmly into a No. 5 Morse Taper spindle. Machinists, toolroom technicians, and maintenance professionals install this arbor when setting up or replacing chuck assemblies on heavy-duty machine tools.\u003c\/p\u003e\n\u003cp\u003eThis arbor is suited for industrial and shop environments where No. 5 Morse Taper spindles are standard, including large drill presses, radial arm drills, and milling machines. The JT4 chuck mount accommodates mid-to-large capacity Jacobs-pattern drill chucks commonly used in production and maintenance drilling applications. It weighs 3.625 pounds, reflecting the robust construction expected for this spindle size.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eJT4 (Jacobs Taper 4) chuck mount for secure, self-centering chuck installation\u003c\/li\u003e\n  \u003cli\u003eNo. 5 Morse Taper shank seats into 5MT spindle bores without additional hardware\u003c\/li\u003e\n  \u003cli\u003eTaper-on-taper design provides rigid, repeatable chuck alignment\u003c\/li\u003e\n  \u003cli\u003eSolid construction suited for heavy-duty drilling loads typical of large machine tools\u003c\/li\u003e\n  \u003cli\u003eSingle-piece arbor eliminates separate adapter components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with JT4-mount drill chucks on machine tools equipped with a No. 5 Morse Taper spindle bore. Consult your machine tool and chuck documentation to confirm JT4 chuck socket and 5MT spindle specifications before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a machinist or qualified toolroom technician. Power down and lock out the machine spindle before seating or removing the arbor. Clean both the 5MT shank and the spindle bore thoroughly to remove chips, oil, and debris before driving the arbor home with a soft-face mallet or draw bar. Remove the arbor using the machine's built-in drift slot and a properly sized drift key to avoid damage to the spindle bore or the arbor taper.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Taper Size\u003c\/strong\u003e: JT4 (Jacobs Taper 4)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Morse Taper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Taper Size\u003c\/strong\u003e: 5MT (No. 5 Morse Taper)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.625 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112800\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: JACOBS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7328DN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JACOBS CHUCK","offers":[{"title":"Default Title","offer_id":67908639424818,"sku":"7328DN","price":177.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6805d7932c38154b579c41d9ec714def.jpg?v=1791184234","url":"https:\/\/voomisupply.com\/products\/jacobs-7328dn-drill-chuck-arbor-jt4-mount-5mt-shank","provider":"Voomi Supply","version":"1.0","type":"link"}