{"product_id":"affilatrici-bernardo-dg-20-m","title":"Bernardo DG 20 M Drill Grinder – Ø 2–20 mm with CBN grinding wheel, 230V","description":"\u003cp\u003eThe Bernardo DG 20 M drill bit sharpener sharpens twist drills from Ø 2–20 mm, point angle 90°–135°, speed 4,800 rpm, 0.12 kW single-phase 230V motor. Weight 8.6 kg. Distributed in Italy by Krollit as an official Bernardo distributor since 2007.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSharpenable drill bit diameter:\u003c\/strong\u003e Ø 2–20 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint angle:\u003c\/strong\u003e 90°–135°\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e 4,800 rpm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor power:\u003c\/strong\u003e 0.12 kW – 230V single-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (L × W × H):\u003c\/strong\u003e 285 × 130 × 170 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 8.6 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho uses the DG 20 M and for what\u003c\/h3\u003e\n\u003cp\u003eThe Bernardo DG 20 M sharpener reconditions worn twist drill bits in the Ø 2–20 mm range – with standard CBN grinding wheel for HSS, carbide, and TiN-coated drill bits. In a mechanical workshop that drills regularly, drill bits are among the most frequent consumables: a Ø 10 mm HSS drill bit costs 3–8 euros; sharpening it with the DG 20 M takes 20–40 seconds. Weighing 8.6 kg and single-phase 230V, it can be installed on any workbench without additional equipment. In Krollit's customer workshops, it is used by mechanical workshops, metal fabricators, and maintenance labs.\u003c\/p\u003e\n\n\u003ch3\u003eWho is the Bernardo DG 20 M for\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProfile\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003cth\u003eReason\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePassionate hobbyist\u003c\/td\u003e\n\u003ctd\u003eIdeal\u003c\/td\u003e\n\u003ctd\u003eCompact, economical, 230V: the entry point into drill bit sharpening for those who want to stop throwing them away.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfessional mechanical workshop\u003c\/td\u003e\n\u003ctd\u003eIdeal\u003c\/td\u003e\n\u003ctd\u003eØ 2–20 mm range: reconditions the most used drill bits in the workshop with a measurable ROI in weeks.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntensive industrial production\u003c\/td\u003e\n\u003ctd\u003eAdequate\u003c\/td\u003e\n\u003ctd\u003eFor very high volumes, consider automatic sharpeners. The DG 20 M is optimal for manual sharpening on demand.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e drill bits outside the Ø 2–20 mm range; carbide drill bits without a dedicated diamond grinding wheel; taps (consider STG 20\/42).\u003c\/p\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\u003eSharpenable drill bit diameter\u003c\/td\u003e\n\u003ctd\u003eØ 2–20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoint angle\u003c\/td\u003e\n\u003ctd\u003e90°–135°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed\u003c\/td\u003e\n\u003ctd\u003e4,800 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\u003e230V – single-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e285 × 130 × 170 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompliance and safety\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\u003eMarking\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDirective\u003c\/td\u003e\n\u003ctd\u003eMachinery 2006\/42\/EC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eLogistics\u003c\/h3\u003e\u003cp\u003eBernardo shipping: 5–9 business days (7 days to the South). Original spare parts available with 3–5 business days shipping. Customer support in Italian available.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the DG 20 M and other Bernardo drill bit sharpeners?\u003c\/summary\u003e\n\u003cp\u003eThe Bernardo range for drill bits covers: DG 13 M (Ø 2–13 mm, 8 kg), DG 13 MD (Ø 2–13 mm with web thinning, 8.1 kg), DG 20 M (Ø 2–20 mm with CBN grinding wheel, 8.6 kg), DG 32 Pro (Ø 2–32 mm, 32 kg), DG 32 MD (Ø 12–32 mm with web thinning, 30 kg). The choice depends on the maximum diameter of the drill bits used in the workshop.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the DG 20 M sharpen carbide drill bits?\u003c\/summary\u003e\n\u003cp\u003eYes. The DG 20 M is fitted with a standard CBN (cubic boron nitride) grinding wheel, suitable for both HSS and TiN-coated carbide drill bits.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long does it take to sharpen a Ø 10 mm drill bit?\u003c\/summary\u003e\n\u003cp\u003eWith the DG 20 M, a slightly worn Ø 10 mm HSS drill bit takes 20–40 seconds. A very worn drill bit may take 1–2 minutes. The consistency of the result increases with the operator's practice.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre replacement grinding wheels available?\u003c\/summary\u003e\n\u003cp\u003eYes. Original Bernardo replacement grinding wheels are available with 3–5 business days shipping.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs specific training required to use it?\u003c\/summary\u003e\n\u003cp\u003eBernardo drill bit sharpeners have guiding systems that automatically position the drill bit at the correct angle. The operator only needs to insert the drill bit into the holder and advance it against the grinding wheel. Learning takes 5–10 minutes of practice.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50693197758792,"sku":"05-1614","price":939.64,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Affilatrice_per_trapano_Bernardo_DG_20_M_con_mola_CBN_e_pinze_ER.jpg?v=1757355367","url":"https:\/\/www.krollit.com\/products\/sharpeners-bernardo-dg-20-m","provider":"Krollit","version":"1.0","type":"link"}