{"product_id":"helical-solutions-83291-ball-end-mill-3-8-in-4-flute-carbide","title":"Helical Solutions 83291 Ball End Mill 3\/8 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HELICAL SOLUTIONS 83291 is a 4-flute solid carbide ball end mill designed for demanding material removal in stainless steels, superalloys, titanium, and hard materials. It carries a Tplus PVD coating and features a variable index geometry that reduces chatter and improves surface finish in both roughing and finishing passes. The 3\/8 inch cutting diameter pairs with a 1\/2 inch length of cut and a 0.1875 inch nose radius. At 2 inches overall length with a straight-cylindrical 3\/8 inch shank, this stub-length tool seats rigidly in standard end mill holders used on CNC machining centers.\u003c\/p\u003e\n\u003cp\u003eThis end mill is sized and coated for shops running stainless steel components, nickel-based superalloys, titanium, and hard workpiece materials where tool life and dimensional control are critical. The variable index flute spacing disrupts harmonic vibration, making it well suited for side milling, profiling, and finishing passes in difficult-to-machine alloys. Secondary workpiece suitability extends to general steel and cast iron, giving the tool flexibility across mixed job shop schedules. It is a single-end tool sold individually.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTplus PVD coating for elevated heat and wear resistance in stainless steels and high-temp alloys\u003c\/li\u003e\n  \u003cli\u003eVariable index flute geometry reduces vibration and chatter during aggressive cuts\u003c\/li\u003e\n  \u003cli\u003e4 helical flutes support both roughing and finishing operations in a single tool\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction delivers rigidity and edge retention at elevated cutting speeds\u003c\/li\u003e\n  \u003cli\u003eStub-length body minimizes deflection in short-reach applications\u003c\/li\u003e\n  \u003cli\u003eMill diameter tolerance of plus 0.0000 \/ minus 0.0020 inches ensures consistent part dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CNC machining centers and manual mills equipped with standard 3\/8 inch end mill holders or collet chucks. Primary workpiece materials are stainless steel, superalloys, titanium, and hard materials (ISO codes M, S, H). Secondary workpiece materials include steel and cast iron (ISO codes P, K).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Secure the straight-cylindrical shank in a properly sized collet or end mill holder, verifying runout does not exceed the 0.0005 inch TIR maximum before cutting. Machine spindle must be fully stopped and locked before tool changes. Do not exceed the tool manufacturer's recommended feeds and speeds for the workpiece material and coating combination.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inches (0.375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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: Tplus (PVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Helical\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\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\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: plus 0.0000 \/ minus 0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: plus 0.0620 \/ minus 0.0625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR Maximum\u003c\/strong\u003e: 0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Superalloys and Titanium, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.099 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: HELICAL SOLUTIONS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 83291\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HELICAL SOLUTIONS","offers":[{"title":"Default Title","offer_id":51728369025330,"sku":"83291","price":117.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e55b1e1cd101980ba6076c5607039ca5.jpg?v=1788690717","url":"https:\/\/voomisupply.com\/products\/helical-solutions-83291-ball-end-mill-3-8-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}