{"product_id":"jacobs-30447dn-morse-taper-extension-adapter-mt3-inside-mt2","title":"Jacobs 30447DN Morse Taper Extension Adapter MT3 Inside MT2","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe JACOBS 30447DN is a Morse taper extension adapter designed to extend reach between machine spindles and tooling in lathe, drill press, and milling applications. It accepts an MT3 inside (female) taper and presents an MT2 outside (male) taper, allowing tools with a smaller taper shank to be used in a larger spindle bore. The adapter is machined from alloy steel and hardened and ground throughout, providing the dimensional accuracy and surface finish required for repeatable, concentric tool holding. Overall length is 7.72 inches with a 4.41-inch projection and a body diameter of 1.42 inches.\u003c\/p\u003e\n\u003cp\u003eThis adapter is suited for machine shop and toolroom use wherever a Morse taper size mismatch exists between a spindle and a toolholder or cutting tool. Typical applications include drill presses, engine lathes, and vertical mills running MT2-shank tooling in MT3 spindles. It is installed by machinists and toolroom technicians as a standard workholding accessory. The hardened and ground construction makes it appropriate for production environments where runout and wear resistance matter.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMT3 inside taper accepts MT3-shank toolholders and adapters\u003c\/li\u003e\n  \u003cli\u003eMT2 outside taper fits MT3 spindle bores for size-up extension\u003c\/li\u003e\n  \u003cli\u003eHardened and ground throughout for tight tolerances and long service life\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction resists deformation under cutting loads\u003c\/li\u003e\n  \u003cli\u003e7.72-inch overall length with 4.41-inch projection extends tool reach\u003c\/li\u003e\n  \u003cli\u003e1.42-inch body diameter provides rigid support along the shank\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in any machine spindle with an MT3 bore requiring MT2 outside taper tooling; consult machine documentation to confirm taper size and tang drive requirements before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA qualified machinist or toolroom technician should install this adapter. Power down and lock out the machine before inserting or removing any taper adapter. Clean taper bores and shanks thoroughly before seating to prevent fretting and runout errors. Never strike the adapter with a steel hammer; use a brass drift or taper-removal wedge through the spindle drift slot to break the taper seat.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdapter Type\u003c\/strong\u003e: Morse Taper to Morse Taper Extension\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Taper Size\u003c\/strong\u003e: MT3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Taper Size\u003c\/strong\u003e: MT2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7.72 inches (196.09 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 4.41 inches (112.01 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 1.42 inches (36.07 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness Features\u003c\/strong\u003e: Hardened and Ground Throughout\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: 30447DN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JACOBS CHUCK","offers":[{"title":"Default Title","offer_id":67908191846706,"sku":"30447DN","price":156.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/432013f30e30e33a49d4d2d4257a525c.jpg?v=1791182794","url":"https:\/\/voomisupply.com\/products\/jacobs-30447dn-morse-taper-extension-adapter-mt3-inside-mt2","provider":"Voomi Supply","version":"1.0","type":"link"}