{"product_id":"onsrud-52-570-upcut-spiral-router-bit-5-16-in-solid-carbide","title":"Onsrud 52-570 Upcut Spiral Router Bit 5\/16 in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ONSRUD 52-570 is a solid carbide upcut spiral router bit designed for cutting foam materials. With a 5\/16-inch (0.3125 inches) cutter diameter and a 3.125-inch length of cut, it handles deep passes in soft, compressible foam substrates where chip evacuation is critical. The upcut flute geometry pulls chips and debris upward and out of the cut path, keeping the workpiece clear and reducing heat buildup. A 25-degree helix angle balances cutting efficiency with edge stability. At 6 inches overall length and a 2.875-inch shank length, this bit fits standard router setups used in CNC and handheld routing applications. It weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003eThe 52-570 is intended for foam material applications including fabrication of foam packaging, signage, insulation panels, and similar lightweight soft-material workpieces. Its double-edge, right-hand cutting configuration suits production environments where clean cut walls and minimal surface tearing are required. This bit is part of the ONSRUD 52-550 series, which is built specifically around foam-cutting geometries. It is installed and operated by CNC operators, tooling technicians, and skilled fabricators working with foam substrates in industrial and commercial shop settings.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for long tool life in abrasive foam materials\u003c\/li\u003e\n\u003cli\u003eUpcut flute design evacuates chips upward, keeping cuts clean and cool\u003c\/li\u003e\n\u003cli\u003e25-degree helix angle balances cutting efficiency and edge integrity\u003c\/li\u003e\n\u003cli\u003eDouble-edge router style for smooth, consistent cut walls\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction compatible with standard router spindle rotation\u003c\/li\u003e\n\u003cli\u003eUncoated finish  -  no coating buildup to interfere with foam cutting performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use spiral router bit for foam cutting applications requiring a 5\/16-inch diameter, upcut geometry tool. Part of the ONSRUD 52-550 series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified CNC operator or tooling technician. Power down and lock out the spindle before changing tooling. Seat the 5\/16-inch shank fully and securely in the collet before operation. Verify spindle speed and feed rate settings are appropriate for the foam substrate and bit diameter before starting a cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutter Diameter\u003c\/strong\u003e: 0.3125 inches (5\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3.125 inches (3-1\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3125 inches (5\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.875 inches (2-7\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 25 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Upcut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRouter Style\u003c\/strong\u003e: Double Edge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBit Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Foam\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiloted\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 52-550\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ONSRUD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 52-570\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ONSRUD","offers":[{"title":"Default Title","offer_id":67951565537586,"sku":"52-570","price":147.61,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/71323f0759d83ebbb53ccbc8db70947c_13fc5ff2-c522-4678-8990-0b9d3bd5b655.jpg?v=1791730286","url":"https:\/\/voomisupply.com\/products\/onsrud-52-570-upcut-spiral-router-bit-5-16-in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}