{"product_id":"fresa-helicoidal-desbaste-vhm-z3-d20-i102-l165-s20-rh-negativo","title":"Spiral router bit Roughing VHM Z3 D20 I102 L165 S20 RH negative ","description":"\u003ch1\u003eThree-flute roughing spiral end mill VHM from the SF51 series\u0026nbsp;\u003c\/h1\u003e\u003cp\u003eIndex: SF51.20.102.165.20R\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 milling on CNC machining centres and vertical milling machines. The left-hand screw line (negative) presses the material against the work table, eliminating the risk of tearing on the upper edge of the workpiece. Three spiral flutes 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 stability of the process.\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 downward chip removal presses the workpiece against the table and provides a perfectly finished, clean upper edge.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003ePremium-class solid carbide (VHM):\u003c\/strong\u003e Rigid monolithic construction minimizes tool deflection under load and guarantees high mechanical durability.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eGeometry with chip breaker:\u003c\/strong\u003e Divides the cut material into smaller pieces, reducing cutting resistance and stabilizing the system operation.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eOptimised shank roughness:\u003c\/strong\u003e The shank surface features low roughness (Ra ≤ 0.3 µm), preventing slippage in the holder and protecting the spindle taper from wear.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDynamic balancing in class G2.5:\u003c\/strong\u003e Static-dynamic balancing compliant with ISO\/EN standards (class G2.5) eliminates vibrations at maximum rotational speeds.\u003c\/li\u003e\u003c\/ul\u003e","brand":"ITA TOOLS","offers":[{"title":"Default Title","offer_id":57445149507924,"sku":"SF51.20.102.165.20R","price":291.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1080\/4183\/0740\/files\/SF51.20.102.165.20R_196.20.060.120.20R-1_a2728370-2785-4868-a6a4-66b3ace58f10.jpg?v=1794304686","url":"https:\/\/es.ita.tools\/en\/products\/fresa-helicoidal-desbaste-vhm-z3-d20-i102-l165-s20-rh-negativo","provider":"ITA TOOLS","version":"1.0","type":"link"}