{"product_id":"pinza-di-bloccaggio-180-mm-per-u3m-05-1796b","title":"Locking pliers 18.0 mm for U3M","description":"\u003cp\u003eCollet chuck Ø 18.0 mm for Bernardo milling machine with U3M collet holder — for precise clamping of 18.0 mm shank tools. Made in Austria, in the Krollit catalog since 2007 as an official Bernardo distributor.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool diameter:\u003c\/strong\u003e 18.0 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet holder type:\u003c\/strong\u003e U3M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with:\u003c\/strong\u003e Bernardo T 500 PF milling machine and other milling machines with U3M collet holder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Hardened steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eAccepted tool diameter\u003c\/td\u003e\n\u003ctd\u003e18.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollet holder type\u003c\/td\u003e\n\u003ctd\u003eU3M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eLogistics\u003c\/h3\u003e\n\u003cp\u003eOriginal spare parts available with 3–5 business days shipping. Customer service in Italian available.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does \"U3M\" mean and which machine is this collet used with?\u003c\/summary\u003e\n\u003cp\u003eU3M indicates the standard thread of the collet holder for which this 18.0 mm collet is intended — it is mounted on the Bernardo T 500 PF milling machine or other milling machines with a compatible U3M collet holder. U3M collets clamp the tool from the outside with high centering precision (TIR typically \u0026lt;0.01 mm) — significantly superior to standard keyless chucks for precision milling and drilling operations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between 18.0 mm collets and the other sizes in the set?\u003c\/summary\u003e\n\u003cp\u003eEach collet is specific to the indicated tool shank diameter — an 18.0 mm collet only accepts tools with an exactly 18.0 mm shank. \"Approximate\" collets cannot be used (e.g., an 8 mm collet for a 6 mm tool). The complete set (6, 8, 12 mm) covers the most common shank diameters for end mills in wood and composite materials on machines in this range.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do you mount and unmount a collet in the collet holder?\u003c\/summary\u003e\n\u003cp\u003e1) Insert the collet into the collet holder cone (it should click into place). 2) Insert the tool into the collet. 3) Tighten the collet holder nut with the appropriate wrench until firmly secured — no further, to avoid deforming the collet. To unmount: loosen the nut and use a brass hammer (never steel) to extract the collet from the conical housing. Never force it with a hammer directly on the nut.\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 in Italian available.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50715415740744,"sku":"05-1796B","price":45.23,"currency_code":"EUR","in_stock":true}],"url":"https:\/\/www.krollit.com\/products\/pinza-di-bloccaggio-180-mm-per-u3m-05-1796b","provider":"Krollit","version":"1.0","type":"link"}