{"product_id":"affilatrici-bernardo-dg-20-cd","title":"Bernardo drill bit sharpener DG 20 CD","description":"\u003cp\u003eThe Bernardo DG 20 CD drill bit sharpener is a professional-grade sharpener, with a 0.12 kW motor, weighing approx. 9.2 kg. Krollit, official Bernardo distributor since 2007.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSharpenable drill bit diameter: 4 – 20 mm\u003c\/li\u003e\n\u003cli\u003eSharpening angle: 135° fixed\u003c\/li\u003e\n\u003cli\u003eGrinding wheel speed: 4400 rpm\u003c\/li\u003e\n\u003cli\u003eMotor power: 0.12 kW\u003c\/li\u003e\n\u003cli\u003ePower supply: 230 V\u003c\/li\u003e\n\u003cli\u003eMachine dimensions: 290 × 180 × 170 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho uses the DG 20 CD drill bit sharpener and for what\u003c\/h3\u003e\n\u003cp\u003eMechanical workshops and tool laboratories use the DG 20 CD drill bit sharpener for sharpening drill bits, milling cutters, and cutting tools, restoring the geometry of worn tools.\u003c\/p\u003e\n\u003ch3\u003eIts place in the Bernardo range\u003c\/h3\u003e\n\u003cp\u003eThe Bernardo DG 20 CD drill bit sharpener is part of the Bernardo sharpening machine range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performance: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for selection assistance.\u003c\/p\u003e\n\u003ch3\u003eKrollit Logistics and Support\u003c\/h3\u003e\n\u003cp\u003eMachine shipping in 5-9 business days (7 days for Southern Italy). For spare parts and accessories, shipping in 3-5 business days from Krollit warehouse. Customer support in Italian available for technical documentation, product sheets, and spare parts order management. Krollit has been an official distributor since 2007.\u003c\/p\u003e\n\u003ch3\u003eWho is the DG 20 CD drill bit sharpener for\u003c\/h3\u003e\n\u003cp\u003eThe DG 20 CD drill bit sharpener is recommended for the following professional profiles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical workshops and tool laboratories\u003c\/strong\u003e: sharpening HSS drill bits, milling cutters, and cutting tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial maintenance technicians\u003c\/strong\u003e: restoring the geometry of worn tools to reduce replacement costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSharpening carbide or ceramic tools\u003c\/strong\u003e: CBN\/diamond grinding wheel is needed for carbide; check model compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSharpenable drill bit diameter\u003c\/td\u003e\n\u003ctd\u003e4 – 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSharpening angle\u003c\/td\u003e\n\u003ctd\u003e135° fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrinding wheel speed\u003c\/td\u003e\n\u003ctd\u003e4400 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor power\u003c\/td\u003e\n\u003ctd\u003e0.12 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMachine dimensions\u003c\/td\u003e\n\u003ctd\u003e290 × 180 × 170 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eapprox. 9.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrinding wheel type\u003c\/td\u003e\n\u003ctd\u003eSDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat can the DG 20 CD drill bit sharpener sharpen?\u003c\/summary\u003e\n\u003cp\u003eHSS drill bits, end mills, disc cutters, and cutting tools within the dimensional limits of the model.\u003c\/p\u003e\n\u003cp\u003eSharpening capacity is limited by the grinding wheel diameter and angular adjustment. For carbide (HM) tools, check CBN\/diamond grinding wheel compatibility.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat sharpening precision does it offer?\u003c\/summary\u003e\n\u003cp\u003eProfessional Bernardo models allow sharpening with tolerances of ±0.02 mm on the cutting angle.\u003c\/p\u003e\n\u003cp\u003ePrecision depends on the machine's rigidity and the quality of the guides. Models with fine calibration allow angular adjustment to the tenth of a degree.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat type of grinding wheel is supplied?\u003c\/summary\u003e\n\u003cp\u003eCorundum grinding wheel for standard HSS sharpening. For HM, a CBN or diamond grinding wheel needs to be purchased separately.\u003c\/p\u003e\n\u003cp\u003eKrollit supplies original Bernardo replacement grinding wheels with a delivery time of 3-5 business days.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes it have a cooling system?\u003c\/summary\u003e\n\u003cp\u003eProfessional sharpeners offer manual drip cooling or a dedicated pump.\u003c\/p\u003e\n\u003cp\u003eCooling prevents the tool from tempering during sharpening and maintains edge hardness. It is essential for delicate sharpening.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much does the machine weigh?\u003c\/summary\u003e\n\u003cp\u003eSee the \"Weight\" data in the technical table: professional models weigh from 50 to over 200 kg.\u003c\/p\u003e\n\u003cp\u003eBenchtop sharpeners are installed on a sturdy workbench, while floor-standing models require floor mounting for stability.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":51343269888328,"sku":"05-16140","price":954.04,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Affilatrice_per_punte_trapano_Bernardo_DG_20_CD_con_mola_SDC.jpg?v=1757356211","url":"https:\/\/www.krollit.com\/products\/sharpeners-bernardo-dg-20-cd","provider":"Krollit","version":"1.0","type":"link"}