{"product_id":"fresa-helicoidal-desbaste-vhm-z3-d8-i32-l80-s8-rh-negativo-nadia","title":"Spiral router bit Roughing VHM Z3 D8 I32 L80 S8 RH negative NaDia","description":"\u003ch1\u003eThree-flute roughing spiral end mill VHM from the SF51 series\u0026nbsp;\u003c\/h1\u003e\u003cp\u003eIndex: SF51.08.032.080.08XR\u003c\/p\u003e\u003cp\u003eIndustrial spiral end mill made from solid carbide (VHM) from the \u003cstrong\u003eSF51\u003c\/strong\u003e\u0026nbsp; series with a negative design (chip removal downwards). Designed for efficient rough machining, cutting, and reaming on CNC machining centres and gantry milling machines. The left-hand helical groove (negative) presses the material down onto the working table, eliminating the risk of tearing on the upper edge of the workpiece. Three spiral blades with a profiled chip breaker reduce cutting resistance, decrease spindle load, and effectively dampen vibrations during intensive cutting. The ground shank in class H6 accuracy protects the drive system and ensures high process stability.\u003c\/p\u003e\u003ch3\u003eKey technical parameters and properties:\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eThree-flute roughing design Z3 (negative):\u003c\/strong\u003e Dedicated roughing profile with chip removal downwards presses the workpiece down onto the table and ensures a perfectly finished, clean upper edge.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003ePremium class solid carbide (VHM):\u003c\/strong\u003e Rigid monolithic design minimizes tool deflection under load and guarantees high mechanical durability.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eGeometry with chip breaker:\u003c\/strong\u003e Breaks the machined material into smaller fragments, reducing cutting resistance and stabilizing the operation.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eOptimised shank roughness:\u003c\/strong\u003e The surface of the shank is characterised by low roughness (Ra ≤ 0.3 µm), preventing slipping in the holder and protecting the spindle cone from wear.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDynamic balancing class G2.5:\u003c\/strong\u003e Static-dynamic balancing in accordance with ISO\/EN standards (class G2.5) eliminates vibrations at maximum rotational speeds.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eAdvanced protective coating NaDia (series .XR):\u003c\/strong\u003e Black PVD coating with extreme hardness of 3650 HV and very low friction coefficient (0.01–0.05) applied at low temperatures. Drastically increases the blade's wear resistance, prevents material sticking, and significantly extends the tool's lifespan during machining of wood, laminates, plywood, plastics, and aluminium.\u0026nbsp;\u0026nbsp;\u003c\/li\u003e\u003c\/ul\u003e","brand":"ITA TOOLS","offers":[{"title":"Default Title","offer_id":57445038653780,"sku":"SF51.08.032.080.08XR","price":41.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1080\/4183\/0740\/files\/SF51.08.032.080.08XR_SF51.08.032.080.08XR-111.jpg?v=1791283264","url":"https:\/\/es.ita.tools\/en\/products\/fresa-helicoidal-desbaste-vhm-z3-d8-i32-l80-s8-rh-negativo-nadia","provider":"ITA TOOLS","version":"1.0","type":"link"}