{"product_id":"bussola-di-riduzione-cm-5-3-24-1028","title":"Reduction socket CM 5 \/ 3","description":"\u003cp\u003eMorse Taper Reduction Sleeve MT 5\/3 — for MT 5 tool holders in MT 3 machine seats. Fully hardened, internal and external taper ground according to DIN 2185. Austrian production by Bernardo. Krollit has been an official distributor in Italy since 2007.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal taper:\u003c\/strong\u003e MT 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal taper:\u003c\/strong\u003e MT 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 156 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e DIN 2185\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessing:\u003c\/strong\u003e Fully hardened, taper ground\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\u003eExternal taper (machine)\u003c\/td\u003e\n\u003ctd\u003eMT 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal taper (tool)\u003c\/td\u003e\n\u003ctd\u003eMT 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e156 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD (outer diameter)\u003c\/td\u003e\n\u003ctd\u003e44.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ed (inner diameter)\u003c\/td\u003e\n\u003ctd\u003e23.825 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eDIN 2185\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessing\u003c\/td\u003e\n\u003ctd\u003eFully hardened, taper ground\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 support available in Italian.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is a CM 5\/3 reduction sleeve used for?\u003c\/summary\u003e\n\u003cp\u003eThe CM 5\/3 reduction sleeve has an external MT 5 taper (the tool) and an internal MT 3 taper (the machine's seat). It allows the use of tools with a larger MT 5 shank in machines with a smaller MT 3 seat — the opposite of an extension sleeve. Length: 156 mm, D: 44.7 mm, d: 23.825 mm. Fully hardened and ground according to DIN 2185.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the MT 5\/3 reduction lose concentricity compared to direct mounting?\u003c\/summary\u003e\n\u003cp\u003eA quality sleeve (fully hardened, internal and external taper ground to DIN 2185) introduces negligible concentricity error — typically \u0026lt;0.01 mm — sufficient for 95% of standard drilling and turning operations. For high-precision grinding and boring, where concentricity \u0026lt;0.005 mm is critical, prefer tools with the machine's native taper.\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 support available in Italian.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50725252235592,"sku":"24-1028","price":43.94,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/24-1028_1.jpg_1.jpg?v=1750408042","url":"https:\/\/www.krollit.com\/products\/bussola-di-riduzione-cm-5-3-24-1028","provider":"Krollit","version":"1.0","type":"link"}