{"product_id":"griffe-per-mandrini-dij-dk12-630","title":"Chuck Jaws DIJ-DK12-630","description":"\u003cp\u003eDIJ Jaws Ø 630 mm for DK12 chucks — internal gripping jaws. Available from Krollit, official Bernardo distributor since 2007.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cb\u003eTechnical specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cdiv class=\"table-responsive table table-detail\"\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003eChuck size\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003e630 mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003eA\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003e225 mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003eB\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003e50 mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003eC\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003e117 mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003ed\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003e16 mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003eE\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003e18 mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003eF\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003e28 mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003eK\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003e149 mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"307\" valign=\"top\"\u003e\u003cp\u003eJ\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"307\"\u003e\u003cp\u003e66 mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ch3\u003eLogistics\u003c\/h3\u003e\n\u003cp\u003eOriginal spare parts available with 3-5 working day shipping. Customer service available in Italian.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDIJ Jaws Ø 630 mm — what does DIJ mean and for what type of clamping?\u003c\/summary\u003e\n\u003cp\u003eDIJ (Direct Inner Jaw) indicates internal gripping jaws: the teeth bite from inside a hole or cavity, expanding outwards. Used to clamp hollow workpieces (rings, flanges, hollow shafts) by gripping them from inside the bore. The tooth geometry is optimized for internal gripping — they are not used for traditional external gripping. The Ø 630 mm size indicates the compatible chuck diameter, not the diameter of the hole that can be clamped.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDK12 series — compatibility with my chuck?\u003c\/summary\u003e\n\u003cp\u003eDK12 mounting (12 bolts DIN 6350). Check your chuck's mounting type before purchasing — DK11 and DK12 are not interchangeable. The Ø 630 mm diameter must match the chuck size. Customer service available in Italian.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the range of internal diameters that can be clamped with these jaws?\u003c\/summary\u003e\n\u003cp\u003eThe clamping range depends on the jaw travel in the chuck and the tooth geometry. As a reference for a Ø 630 mm chuck: the minimum bore that can be clamped is approximately 15-20% of the chuck diameter; the maximum is approximately 60-70%. For applications outside this range, contact Krollit. Customer service available in Italian.\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 working day shipping. Customer service available in Italian.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50726248612168,"sku":"21-0990","price":2150.77,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Griffe-per-mandrini-DIJ-DK12-630-extra-big-21343-077.jpg?v=1750417241","url":"https:\/\/www.krollit.com\/products\/griffe-per-mandrini-dij-dk12-630","provider":"Krollit","version":"1.0","type":"link"}