{"product_id":"guhring-9030770063500-square-end-mill-0-25-in-4-flute-carbide","title":"Guhring 9030770063500 Square End Mill 0.25 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9030770063500 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. This single-end tool features a 0.25-inch cutting diameter, a 0.75-inch length of cut, and a 2.5-inch overall length with a 0.25-inch straight cylindrical shank. Four spiral flutes with a variable helix angle of 40 to 42 degrees promote smooth chip evacuation and reduce chatter during aggressive cuts. The bright, uncoated finish suits general-purpose work where coating is not required or where regrinding is anticipated. It is installed and operated by machinists, tool-and-die makers, and CNC operators working in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for milling slots, pockets, and profiles in materials classified under primary workpiece material code N, which typically includes non-ferrous metals and plastics. The centercutting geometry allows plunge entry directly into the workpiece, enabling both peripheral and end milling in a single tool. The right-hand cut and right-hand flute configuration is standard for conventional CNC machining centers and manual knee mills. The regular-length flute geometry keeps the tool rigid, which is important when maintaining tight tolerances on shallow-to-medium-depth features.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eVariable helix at 40 to 42 degrees reduces harmonic vibration and improves surface finish\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge entry without pre-drilling\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction provides rigidity and wear resistance compared to HSS tooling\u003c\/li\u003e\n\u003cli\u003eFour spiral flutes for efficient chip evacuation in non-ferrous and plastic materials\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish allows for easy regrinding and recoating by a tool service shop\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank with h6 tolerance for precise collet and end mill holder seating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide square end mill in GUHRING Series 3077, intended for use in standard 0.25-inch collets, end mill holders, or hydraulic chucks on CNC machining centers and manual mills.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator following the machine tool manufacturer guidelines for tool holding and runout. Ensure the spindle is fully stopped and the machine is in a safe state before loading or unloading the tool. Seat the shank fully into the collet or holder to the minimum engagement depth recommended by the holder manufacturer to prevent pullout under cutting loads. Do not exceed the tool's rated depth of cut or feed per tooth for the workpiece material being machined.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 to 42 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: h10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 3077\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Code\u003c\/strong\u003e: N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\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: GUHRING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9030770063500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51731074580786,"sku":"9030770063500","price":73.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d361f1d12f5fbf47377ed7098d5ffc50.jpg?v=1788726632","url":"https:\/\/voomisupply.com\/products\/guhring-9030770063500-square-end-mill-0-25-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}