{"product_id":"seco-17004603-ball-end-mill-1-4-in-4-flute-solid-carbide","title":"Seco 17004603 Ball End Mill 1\/4 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 17004603 is a solid carbide ball end mill designed for high-performance material removal in both roughing and finishing operations. It features a 0.250-inch mill diameter, a 1.375-inch length of cut, and a 4-inch overall length, placing it in the extra-long category for extended reach applications. The CVD diamond coating provides exceptional hardness and wear resistance, making this tool well suited for machining abrasive materials such as graphite, green ceramics, carbon fiber reinforced polymers, and similar composites. Four spiral flutes with a 30-degree medium helix angle support efficient chip evacuation and smooth cutting action. The tool is centercutting and runs in a right-hand cutting and flute direction.\u003c\/p\u003e\n\u003cp\u003eThis end mill is used in CNC machining centers where extended reach into deep cavities, molds, dies, or complex 3D contoured surfaces is required. The 0.125-inch nose radius delivers consistent ball-end profiles on finish passes. It is equally capable on roughing passes in materials where the CVD diamond coating provides the required abrasion resistance. The straight-cylindrical shank accepts standard ER collet chucks and shrink-fit holders with a 0.250-inch bore. No coolant-through capability is present, so flood, mist, or air blast cooling should be planned externally. This tool is intended for use by machinists and CNC programmers operating precision machining equipment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD diamond coating for superior abrasion resistance in graphite, CFRP, and ceramic applications\u003c\/li\u003e\n  \u003cli\u003e4-flute spiral geometry supports both roughing and finishing in a single tool\u003c\/li\u003e\n  \u003cli\u003e30-degree medium helix angle promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eExtra-long 4.000-inch overall length for deep-cavity and extended-reach setups\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows plunge entry and ramp entry cuts\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute direction for conventional CNC spindle use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement or standard tooling selection for 0.250-inch straight-cylindrical shank tool holders including ER collet chucks, shrink-fit holders, and hydraulic chucks used in CNC machining centers. Part of the SECO DIALB430 series (manufacturers catalog number DIALB430-0.250-D6-B.0-Z4).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist following the machine tool manufacturer guidelines for tool holding and runout verification. Verify TIR does not exceed 0.0005 inches at the holder before beginning a cut. Power down and lock out the spindle before changing tooling. Avoid using this tool on ferrous materials, as CVD diamond coatings are not suitable for steels or cast iron due to carbon diffusion at cutting temperatures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 0.1250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 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\u003c\/strong\u003e: CVD Diamond\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Extra Long\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.0000 \/ -0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: +0.0600 \/ -0.0600 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 \/ -0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum TIR\u003c\/strong\u003e: 0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: DIALB430\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.11 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SECO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 17004603\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51559549206834,"sku":"17004603","price":349.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/db3bfc5b7bd1718b9645038559860535_778d5e8b-042f-4998-b199-66f5bd3aeda9.jpg?v=1786435067","url":"https:\/\/voomisupply.com\/products\/seco-17004603-ball-end-mill-1-4-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}