{"product_id":"assorts-tool-steel-drill-chuck-arbor-r8-shank-drawbar-style-with-jt2-mounting-taper-for-drill-mill-lathe-tools","title":"ASSORTS Tool Steel Drill Chuck Arbor - R8 Shank Drawbar Style with JT2 Mounting Taper for Drill, Mill, Lathe Tools","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:883962e8-8996-4cf6-a71d-b15e79bad3e9-228\" data-testid=\"conversation-turn-156\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"c86a6b3d-5c05-400b-a819-bcefc972b074\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"1380\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• \u003cstrong data-start=\"2\" data-end=\"34\"\u003ePrecision R8 to JT2 Adapter:\u003c\/strong\u003e This drill chuck arbor is specially designed for milling machines with an R8 spindle, such as Bridgeport-style mills. It provides a seamless connection between the machine spindle and drill chucks with a JT2 (Jacobs Taper 2) mount.\u003cbr data-start=\"266\" data-end=\"269\"\u003e• \u003cstrong data-start=\"271\" data-end=\"305\"\u003e7\/16\" × 20 UNF Drawbar Thread:\u003c\/strong\u003e The arbor features a standard 7\/16\" × 20 UNF internal drawbar thread, allowing it to securely lock into the machine spindle. This ensures reduced vibration and prevents tool slippage during operation.\u003cbr data-start=\"506\" data-end=\"509\"\u003e• \u003cstrong data-start=\"511\" data-end=\"560\"\u003eHardened \u0026amp; Precision Ground Construction:\u003c\/strong\u003e Manufactured from high-quality alloy tool steel, the arbor is hardened and precision-ground to ensure perfect metal-to-metal spindle contact and accurate alignment.\u003cbr data-start=\"725\" data-end=\"728\"\u003e• \u003cstrong data-start=\"730\" data-end=\"761\"\u003eMinimal Runout Performance:\u003c\/strong\u003e Thanks to its precision-ground finish and tight manufacturing tolerances, the arbor provides near-zero runout (wobble). This results in more accurate drilling and improved hole quality.\u003cbr data-start=\"947\" data-end=\"950\"\u003e• \u003cstrong data-start=\"952\" data-end=\"983\"\u003eVersatile Workshop Utility:\u003c\/strong\u003e Compatible with all machines supporting R8 tooling, including milling machines and specialized lathe setups, making it an essential tool for both professional machinists and hobbyists.\u003cbr data-start=\"1168\" data-end=\"1171\"\u003e• \u003cstrong data-start=\"1173\" data-end=\"1202\"\u003eDurable Industrial Build:\u003c\/strong\u003e Designed for heavy-duty machining environments, this arbor maintains its dimensional stability and performance over long-term use, making it a reliable addition to any workshop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"assortsmachinetools","offers":[{"title":"Default Title","offer_id":47229634937024,"sku":"R8-SHNK-JT2-DCAr-FBA","price":27.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/0482\/7328\/files\/41UYVHQNnjL._AC_SL1500.jpg?v=1768211976","url":"https:\/\/shop.assortsmachinetools.com\/products\/assorts-tool-steel-drill-chuck-arbor-r8-shank-drawbar-style-with-jt2-mounting-taper-for-drill-mill-lathe-tools","provider":"Assorts","version":"1.0","type":"link"}