{"product_id":"accupro-ej04500000msc-drill-chuck-arbor-jt5-4mt","title":"Accupro EJ04500000MSC Drill Chuck Arbor JT5 4MT","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO EJ04500000MSC is a taper drill chuck arbor designed to connect a Jacobs Taper 5 (JT5) drill chuck to a machine spindle with a Number 4 Morse Taper (4MT) shank. It serves as the mechanical interface between the chuck and the machine, transmitting torque and maintaining concentricity during drilling operations. The arbor features a tapered Morse shank on one end for secure seating in the spindle and a JT5 taper on the mount end to accept a compatible drill chuck. Overall length is 175 millimeters (approximately 6.89 inches). Machinists, tool-and-die makers, and maintenance technicians install this component on drill presses, lathes, and milling machines equipped with a 4MT spindle bore.\u003c\/p\u003e\u003cp\u003eThis arbor is suited for use in shops running drill presses or lathes with a Number 4 Morse Taper spindle where a JT5-mount chuck is the preferred tooling. Common applications include production drilling, maintenance shops, and machine tool setups requiring a reliable chuck-to-spindle connection. It is appropriate for both light and moderate-duty drilling where a solid taper-on-taper fit is needed to prevent chuck pullout under load.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eJT5 Jacobs Taper mount accepts standard JT5 drill chucks\u003c\/li\u003e\n\u003cli\u003eNumber 4 Morse Taper shank seats directly into 4MT spindle bores without adapters\u003c\/li\u003e\n\u003cli\u003eTaper-on-taper design provides positive, self-holding engagement under drilling loads\u003c\/li\u003e\n\u003cli\u003eOverall length of 175 millimeters (approximately 6.89 inches) suits standard spindle clearances\u003c\/li\u003e\n\u003cli\u003eWeighs 2.17 pounds, indicating a robust, solid construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit arbor for drill presses, lathes, and milling machines equipped with a Number 4 Morse Taper spindle and requiring a JT5 chuck mount interface.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or maintenance technicians. Before installing or removing the arbor, power down the machine and bring the spindle to a complete stop. Clean both the spindle bore and the Morse Taper shank with a lint-free cloth to remove oil, chips, and debris before seating the taper, as contamination will reduce holding force and concentricity. To remove the arbor, use the machine's drift slot and a proper drift key rather than striking the chuck body directly, which can damage the chuck or spindle.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: JT5 (Jacobs Taper 5)\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: 4MT (Number 4 Morse Taper)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 175 millimeters (approximately 6.89 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.17 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112800\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: EJ04500000MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51729618501938,"sku":"EJ04500000MSC","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2c3df52da8e3ad490c5414fc4f50dce2.jpg?v=1788706826","url":"https:\/\/voomisupply.com\/products\/accupro-ej04500000msc-drill-chuck-arbor-jt5-4mt","provider":"Voomi Supply","version":"1.0","type":"link"}