{"product_id":"fresa-a-corona-hssco5-cdl-con-rivestimento-in-naco-14-18-22-mm-profondita-di-foratura-50-mm-da-5-pezzi","title":"Bernardo HSSCO5 CDL Annular Cutter with nACO coating, 14\/18\/22 mm, 50 mm drilling depth, 5 pieces","description":"\u003cp\u003eThe Bernardo HSSCO5 CDL nACO annular cutter, 14\/18\/22 mm, 50 mm drilling depth, 5 pieces is a professional cutting tool available from Krollit, an official Bernardo distributor since 2007.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWith Weldon shank 19 mm\u003c\/li\u003e\n\u003cli\u003eExcellent chip removal\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel\u003c\/li\u003e\n\u003cli\u003eHard material coated\u003c\/li\u003e\n\u003cli\u003eHigh wear protection\u003c\/li\u003e\n\u003cli\u003eHigh hardness and adhesion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho uses the HSSCO5 CDL nACO annular cutter, 14\/18\/22 mm, 50 mm drilling depth, 5 pieces and for what\u003c\/h3\u003e\n\u003cp\u003eMachine shops and tool workshops use the HSSCO5 CDL nACO annular cutter, 14\/18\/22 mm, 50 mm drilling depth, 5 pieces 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\u003eThe Bernardo HSSCO5 CDL nACO annular cutter, 14\/18\/22 mm, 50 mm drilling depth, 5 pieces is part of Bernardo's range of cutting tools, 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\u003eShipping 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 HSSCO5 CDL nACO annular cutter, 14\/18\/22 mm, 50 mm drilling depth, 5 pieces for?\u003c\/h3\u003e\n\u003cp\u003eThe HSSCO5 CDL nACO annular cutter, 14\/18\/22 mm, 50 mm drilling depth, 5 pieces is recommended for the following professional profiles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine shops and tool workshops\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 or original tool for the specified machine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOut-of-spec materials\u003c\/strong\u003e: check machinable 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 is an annular cutter used for?\u003c\/summary\u003e\n\u003cp\u003eIt makes large diameter holes in sheet metal and metal, removing only the outer ring and leaving a central core.\u003c\/p\u003e\n\u003cp\u003eAnnular cutters are much more efficient than traditional drill bits for large diameters: they remove only the necessary material, reduce drill effort, and produce cleaner holes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat steel is it made of?\u003c\/summary\u003e\n\u003cp\u003eMade of HSS-Co5 (5% cobalt high-speed steel), with greater heat resistance and durability on hard steels compared to HSS alone.\u003c\/p\u003e\n\u003cp\u003eThe NaCo (Naco) coating further increases surface hardness (up to 3,000 HV) and wear resistance, doubling the lifespan on hardened steels.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich machine is it mounted on?\u003c\/summary\u003e\n\u003cp\u003eIt is mounted on magnetic drills (coring machines) and milling machines with standard Weldon or TCT shanks.\u003c\/p\u003e\n\u003cp\u003eMagnetic drills are the most popular choice for annular cutters, thanks to strong magnetic adhesion and controlled feed. Check the shank type before purchasing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat drilling depth does it reach?\u003c\/summary\u003e\n\u003cp\u003eBernardo annular cutters are available with 30 mm depth (short version) or 55 mm (long version, KBL\/CDL).\u003c\/p\u003e\n\u003cp\u003eFor thicknesses up to 30 mm, the short version is optimal (more rigid). For thicknesses 30-55 mm, the long version is needed. Greater thicknesses require custom cutters.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is it lubricated during processing?\u003c\/summary\u003e\n\u003cp\u003eUse cutting oil or coolant emulsion applied directly to the cutting point. Coolant reduces heat and extends tool life.\u003c\/p\u003e\n\u003cp\u003eFor hard steels or high thicknesses, lubrication is essential: without coolant, the cutter overheats, loses sharpness, and can break prematurely. Recommended cutting speed: 20-30 m\/min on mild steel.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50725765939528,"sku":"41-11052","price":239.88,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Fresa-a-corona-HSSCO5-CDL-con-rivestimento-in-nACO-14-18-22-mm-p-extra-big-14182-623.jpg?v=1750413565","url":"https:\/\/www.krollit.com\/products\/fresa-a-corona-hssco5-cdl-con-rivestimento-in-naco-14-18-22-mm-profondita-di-foratura-50-mm-da-5-pezzi","provider":"Krollit","version":"1.0","type":"link"}