{"product_id":"fresa-helicoidal-con-cuello-para-relieves-3d-vhm-z3-d25-i40-l250-s25-rh-desbaste-positivo","title":"Spiral router bit with neck for 3D reliefs VHM Z3 D25 I40 L250 S25 RH Roughing positive","description":"\u003ch2\u003eThree-flute VHM roughing end mill with undercut for 3D models – upward chip ejection\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIndex:\u003c\/strong\u003e \u003cstrong\u003eSR34.25.040.250.25R\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIndustrial roughing end mill made from solid sintered carbide (VHM) with profiled cutting edges, body undercut (neck) and upward chip ejection (positive geometry). Designed for efficient preliminary machining, deep cutting, and forming of dies and 3D models in aluminium, plastics, and composites. The chip breaker crushes the machined material into smaller pieces, which reduces cutting resistance, minimises vibrations, and prevents clogging of the chip channels. The narrowed body eliminates the risk of the clamping part touching the material walls during deep cutting. The right-hand spiral efficiently removes the material from the bottom of the cut, ensuring a clean working environment. The ground shank with an H6 tolerance guarantees axial accuracy and protects the CNC machine spindle.\u003c\/p\u003e\u003ch3\u003eConstruction advantages and technical properties:\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eUndercut construction (neck):\u003c\/strong\u003e The narrowed 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 divide the material into fine particles, reducing cutting resistance and preventing chip binding.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThree-flute arrangement (Z3):\u003c\/strong\u003e Three cutting edges provide a high level of stiffness, allowing for operation at higher feed speeds.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eUpward chip evacuation (positive):\u003c\/strong\u003e The right-hand chip channel lifts dust and chips, protecting the cut bottom and 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 sticking to the body.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eMonolithic sintered carbide (VHM):\u003c\/strong\u003e The rigid structure dampens vibrations and ensures a long lifespan when machining with large tolerances.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eLow shank roughness (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 balancing G2.5:\u003c\/strong\u003e Compliance with ISO standards allows for safe and smooth operation at very high speeds.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eIntended use and application range:\u003c\/h3\u003e\u003cp\u003eThe tool is designed for rough cutting, deep contouring, grooving, and preliminary shaping of 3D models on CNC machines.\u003c\/p\u003e\u003cp\u003eUsed for machining materials such as aluminium, plastics, and composite boards like CORIAN® and HPL.\u003c\/p\u003e","brand":"ITA TOOLS","offers":[{"title":"Default Title","offer_id":57445123588436,"sku":"SR34.25.040.250.25R","price":476.3,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1080\/4183\/0740\/files\/SR34.25.040.250.25R_195.25.040.250.25rm-108.jpg?v=1791283725","url":"https:\/\/es.ita.tools\/en\/products\/fresa-helicoidal-con-cuello-para-relieves-3d-vhm-z3-d25-i40-l250-s25-rh-desbaste-positivo","provider":"ITA TOOLS","version":"1.0","type":"link"}