{"product_id":"fresa-helicoidal-con-cuello-para-relieves-3d-vhm-z3-d20-i40-l250-s20-rh-desbaste-positivo","title":"Spiral router bit with neck for 3D reliefs VHM Z3 D20 I40 L250 S20 RH Roughing positive","description":"\u003ch2\u003eThree-fluted VHM roughing end mill with undercut for 3D models – upward chip evacuation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIndex:\u003c\/strong\u003e \u003cstrong\u003eSR34.20.040.250.20R\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIndustrial roughing end mill made of solid carbide (VHM) with profiled teeth, an undercut body (neck), and upward chip evacuation (positive geometry). Designed for efficient preliminary machining, deep cutting, and moulding of matrices and 3D models in aluminium, plastics, and composites. The chip breaker shreds the cut material into smaller pieces, reducing cutting resistance, minimising vibrations, and preventing chip clogging in the channels. The tapered body eliminates the risk of the gripping part rubbing against the material walls during deep penetration. The right-hand helical design efficiently removes chips from the bottom of the cut, ensuring a clean working environment. The ground shank in class H6 guarantees axial accuracy and protects the CNC machine spindle.\u003c\/p\u003e\u003ch3\u003eDesign advantages and technical properties:\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eUndercut design (neck):\u003c\/strong\u003e The tapered body prevents collisions with the material during deep milling, facilitates chip removal, and reduces friction.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eRoughing geometry with chip breaker:\u003c\/strong\u003e The profiled blades break the material into fine particles, reducing cutting resistance and preventing chip jamming.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThree-fluted system (Z3):\u003c\/strong\u003e Three cutting edges provide a high level of rigidity, allowing operation with higher feed rates.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eUpward chip evacuation (positive):\u003c\/strong\u003e The right-hand chip channel lifts dust and chips, protecting the bottom of the cut and the underside of the material from damage.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003ePolished chip grooves:\u003c\/strong\u003e The smooth surface of the spiral reduces friction and prevents aluminium from adhering to the body.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eSolid carbide (VHM):\u003c\/strong\u003e The rigid structure dampens vibrations and ensures a long tool life when machining with large allowances.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eLow roughness of the shank (Ra ≤ 0.3 µm):\u003c\/strong\u003e The ground shank prevents slipping in the holder and protects the spindle taper from wear.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDynamic balance G2.5:\u003c\/strong\u003e Compliance with ISO standards enables safe and smooth operation at very high speeds.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eIntended use and application range:\u003c\/h3\u003e\u003cp\u003eThis tool is intended for rough cutting operations, deep cutting, welding, and preliminary shaping of 3D models on CNC machines.\u003c\/p\u003e\u003cp\u003eUsed for machining materials such as: aluminium, plastics, and composite panels like CORIAN® and HPL.\u003c\/p\u003e","brand":"ITA TOOLS","offers":[{"title":"Default Title","offer_id":57445082333524,"sku":"SR34.20.040.250.20R","price":278.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1080\/4183\/0740\/files\/SR34.20.040.250.20R_195.20.040.250.20RM-103.jpg?v=1793968453","url":"https:\/\/es.ita.tools\/en\/products\/fresa-helicoidal-con-cuello-para-relieves-3d-vhm-z3-d20-i40-l250-s20-rh-desbaste-positivo","provider":"ITA TOOLS","version":"1.0","type":"link"}