{"product_id":"punte-elicoidali-hss-con-codolo-cilindrico-da-8-pezzi-13-25-mm-kit-d","title":"Bernardo 8-piece HSS Twist Drill Bit Set with Cylindrical Shank, 13 - 25 mm, D Kit","description":"\u003cp\u003eBernardo 8-piece HSS Twist Drill Bit Set with Cylindrical Shank, 13 - 25 mm, Kit D is a cutting tool for professional use available from Krollit, an official Bernardo distributor since 2007.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e13 \/ 14 \/ 15 \/ 16 \/ 18 \/ 20 \/ 22 \/ 25 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho uses the 8-piece HSS Twist Drill Bit Set with Cylindrical Shank, 13 - 25 mm, Kit D and for what purpose\u003c\/h3\u003e\n\u003cp\u003eMechanical workshops and tool laboratories use the 8-piece HSS Twist Drill Bit Set with Cylindrical Shank, 13 - 25 mm, Kit D for cutting, drilling, or sharpening operations on materials compatible with the tool's geometry.\u003c\/p\u003e\n\u003ch3\u003eIts place in the Bernardo range\u003c\/h3\u003e\n\u003cp\u003eBernardo 8-piece HSS Twist Drill Bit Set with Cylindrical Shank, 13 - 25 mm, Kit D is part of Bernardo's cutting tool range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performance levels: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for assistance with selection.\u003c\/p\u003e\n\u003ch3\u003eKrollit logistics and support\u003c\/h3\u003e\n\u003cp\u003eShipping in 3-5 business days from Krollit warehouse for spare parts and accessories. Customer support in Italian available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.\u003c\/p\u003e\n\u003ch3\u003eWho is the 8-piece HSS Twist Drill Bit Set with Cylindrical Shank, 13 - 25 mm, Kit D for\u003c\/h3\u003e\n\u003cp\u003eThe 8-piece HSS Twist Drill Bit Set with Cylindrical Shank, 13 - 25 mm, Kit D 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: cutting and sharpening operations on compatible materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsers with compatible machines\u003c\/strong\u003e: replacement part or original tool for the specified machine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOut-of-spec materials\u003c\/strong\u003e: verify workable material and tool geometry before use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are these HSS twist drill bits used for?\u003c\/summary\u003e\n\u003cp\u003eThey are used with drill presses, milling machines, and metal drilling chucks for the operations indicated in the product title.\u003c\/p\u003e\n\u003cp\u003eThe choice of the specific model depends on the number of pieces (8, 25, 51), format (cylindrical shank or Morse taper), kit (A, B, C), and diameters (e.g., 13-25 mm), compatible with drills with corresponding chuck or Morse taper.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat steel are they made of?\u003c\/summary\u003e\n\u003cp\u003eBernardo lathe tools are made of HSS (High Speed Steel) or Carbon Steel depending on the model indicated in the title.\u003c\/p\u003e\n\u003cp\u003eHSS withstands temperatures up to 600 °C and is suitable for most woods and materials. Carbon Steel is cheaper but has a shorter lifespan, suitable for hobby use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many pieces does the set contain?\u003c\/summary\u003e\n\u003cp\u003eThe number of pieces is indicated in the title (e.g., \"5 pieces\", \"6 pieces\", \"8 pieces\"). Larger sets cover a wider range of workable profiles.\u003c\/p\u003e\n\u003cp\u003eStarter sets (4-5 pieces) for beginners, professional sets (6-8 pieces) for complete work with gouges, flat chisels, scrapers, and parting blades.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo they need to be sharpened periodically?\u003c\/summary\u003e\n\u003cp\u003eYes, lathe tools need to be sharpened regularly to maintain a clean cut. The frequency depends on the intensity of use and the material being worked.\u003c\/p\u003e\n\u003cp\u003eFor HSS blades, sharpening is recommended every 8-15 hours of actual work. Krollit provides dedicated Bernardo sharpeners (BSG, DG series) to maintain the correct cutting edge angle.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should they be stored correctly?\u003c\/summary\u003e\n\u003cp\u003eStore in a dedicated drawer or mat with individual protection, lightly oiled to prevent oxidation. Avoid contact between cutting edges.\u003c\/p\u003e\n\u003cp\u003eSurface oxidation reduces cutting quality and accelerates wear. Clean after each use and apply a protective film (machine oil or WD-40). Store in a dry place, away from heat sources.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50727713079624,"sku":"41-1040","price":80.39,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Punte-elicoidali-HSS-con-codolo-cilindrico-da-8-pezzi-13-25-mm-k-extra-big-8195-205.jpg?v=1750432138","url":"https:\/\/www.krollit.com\/products\/punte-elicoidali-hss-with-codolo-cilindrico-da-8-pieces-13-25-mm-kit-d","provider":"Krollit","version":"1.0","type":"link"}