{"product_id":"bussola-di-estensione-cm-3-2-24-1043","title":"Extension socket CM 3 \/ 2","description":"\u003cp\u003eMorse taper extension sleeve MT 3\/2 — tool holder MT 2 for MT 3 machine spindles. Fully hardened, inner and outer taper ground according to DIN 2187. Manufactured in Austria by Bernardo; Krollit has been the official distributor in Italy since 2007.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter taper:\u003c\/strong\u003e MT 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner taper:\u003c\/strong\u003e MT 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e DIN 2187\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkmanship:\u003c\/strong\u003e Fully hardened, ground taper\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter taper (machine)\u003c\/td\u003e\n\u003ctd\u003eMT 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner taper (tool)\u003c\/td\u003e\n\u003ctd\u003eMT 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eDIN 2187\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorkmanship\u003c\/td\u003e\n\u003ctd\u003eFully hardened, ground taper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eLogistics\u003c\/h3\u003e\n\u003cp\u003eOriginal spare parts available with 3–5 business days shipping. Customer service available in Italian.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is an MT 3\/2 extension sleeve for and when is it needed?\u003c\/summary\u003e\n\u003cp\u003eThe MT 3\/2 extension sleeve has an MT 3 outer taper (fits into the machine) and an MT 2 inner taper (holds the tool). It allows you to mount tools with an MT 2 Morse taper shank on machines with an MT 3 Morse taper spindle — the larger number is the machine taper, the smaller is the tool taper. The extension sleeve allows the smaller tool to fit into the larger spindle, maintaining DIN 2187 concentricity.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDifference between extension sleeve and reduction sleeve?\u003c\/summary\u003e\n\u003cp\u003eAn extension sleeve holds a smaller taper (tool) in a larger spindle (machine): MT 3\/2 → the machine has MT 3, the tool has MT 2. A reduction sleeve does the opposite — it holds a larger taper in a smaller spindle. They are not interchangeable. Always check which one you need before purchasing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow to remove the sleeve from the Morse taper spindle?\u003c\/summary\u003e\n\u003cp\u003eUsing the knockout pin (drawbar) that runs through the spindle hole: insert the pin from the opposite side and strike with a hammer. Alternatively, use the flat knockout wedge inserted into the spindle slot. Never force it with improvised tools — the Morse taper is self-locking and lateral force can damage the spindle.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDelivery times?\u003c\/summary\u003e\n\u003cp\u003eOriginal spare parts available with 3–5 business days shipping. Customer service available in Italian.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50725237817672,"sku":"24-1043","price":42.03,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/24-1043_1.jpg_1.jpg?v=1750407572","url":"https:\/\/www.krollit.com\/products\/bussola-di-estensione-cm-3-2-24-1043","provider":"Krollit","version":"1.0","type":"link"}