{"product_id":"endmill-onsrud-52-080","title":"LMT Onsrud 52-080 1\/4\" Solid Carbide 2-Flute Upcut Spiral Router Bit – 3\/4\" Cut Length, 1\/4\" Shank, 2-1\/2\" OAL","description":"\u003cp\u003eThe LMT Onsrud 52-080 is a 1\/4\" solid carbide, two-flute upcut spiral router bit built for CNC routers cutting materials that chew up ordinary tooling: fiberglass, solid surface, phenolic, acetal (Delrin), and aluminum slab. The 30° upcut spiral pulls chips up and out of the slot so the bit runs cooler and leaves a clean bottom edge on through-cuts and pockets. Solid carbide holds its edge several times longer than high-speed steel in abrasive composites, which means fewer tool changes and more consistent part dimensions over a production run.\u003c\/p\u003e\n\u003ch2\u003eLMT Onsrud 52-080 specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e52-080 (LMT Onsrud 52-000 series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCutting diameter\u003c\/th\u003e\n\u003ctd\u003e1\/4\" (0.250\", 6.35 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut length (LOC)\u003c\/th\u003e\n\u003ctd\u003e3\/4\" (0.750\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank diameter\u003c\/th\u003e\n\u003ctd\u003e1\/4\" (0.250\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall length\u003c\/th\u003e\n\u003ctd\u003e2-1\/2\" (2.500\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlutes\u003c\/th\u003e\n\u003ctd\u003e2, double edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCut direction\u003c\/th\u003e\n\u003ctd\u003eUpcut spiral, 30° helix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSolid carbide, uncoated (bright) finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e895680008329\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWhat the 52-080 is designed to cut\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFiberglass and FRP panels\u003c\/li\u003e\n\u003cli\u003eSolid surface (Corian and similar acrylic\/polyester sheet)\u003c\/li\u003e\n\u003cli\u003ePhenolic, Garolite, and other laminated composites\u003c\/li\u003e\n\u003cli\u003eAcetal (Delrin), nylon, and other hard plastics\u003c\/li\u003e\n\u003cli\u003eAluminum slab and plate at light engagement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy choose an upcut spiral for these materials\u003c\/h2\u003e\n\u003cp\u003eComposites and solid surface produce fine, abrasive dust that packs into a straight-flute bit and generates heat. An upcut spiral lifts that swarf out of the cut continuously, which keeps the edge cooler, reduces melting on plastics, and gives you a cleaner bottom surface. The trade-off is slight fuzzing on the top edge of fibrous material; if the top face is the show face, pair this bit with a downcut finishing pass or use a compression bit.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eThe 1\/4\" shank fits any router or spindle with a 1\/4\" collet, including ER11, ER16, ER20, and ER32 collet systems, as well as 1\/4\" trim-router collets.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 52-080 a good general-purpose wood bit?\u003c\/strong\u003e\u003cbr\u003eIt will cut wood, but LMT Onsrud's 52-200 series (for example the 52-280) is ground specifically for wood and gives a better finish there. Choose the 52-080 when the job is fiberglass, solid surface, phenolic, acetal, or aluminum.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this bit in aluminum?\u003c\/strong\u003e\u003cbr\u003eYes, on aluminum slab and plate with conservative depth of cut. For high-volume aluminum sheet work, a single-flute O-flute such as the LMT Onsrud 63-600 series clears chips more aggressively.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long is the cutting edge?\u003c\/strong\u003e\u003cbr\u003e3\/4\", so it will cut material up to 3\/4\" thick in a single through-pass and can be stepped down for deeper pockets.\u003c\/p\u003e\n\u003cp\u003eGenuine LMT Onsrud tooling, manufactured in Waukegan, Illinois, USA.\u003c\/p\u003e","brand":"LMT Onsrud","offers":[{"title":"Default Title","offer_id":67608515051694,"sku":"52-080","price":58.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/52-080_1.jpg?v=1790878168","url":"https:\/\/buildyourcnc.com\/de\/products\/endmill-onsrud-52-080","provider":"BuildYourCNC","version":"1.0","type":"link"}