{"product_id":"helical-solutions-45138-corner-radius-end-mill-1-4in-5-flute","title":"Helical Solutions 45138 Corner Radius End Mill 1\/4in 5 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HELICAL SOLUTIONS 45138 is a 5-flute corner radius end mill ground from solid carbide and coated with a proprietary APLUS PVD finish. It carries a 1\/4 inch diameter with a 0.0600 inch corner radius, a 3\/4 inch length of cut, and a 2.5 inch overall length. The APLUS coating improves lubricity and wear resistance, extending tool life in demanding cutting cycles. Designed for the HEV-5 series, this tool features a variable pitch configuration that reduces harmonic chatter during high-speed passes. It is suited for machinists and CNC operators running roughing and finishing operations in a single setup on steel, cast iron, and a range of secondary workpiece materials.\u003c\/p\u003e\u003cp\u003eThe 45138 is built for use in CNC machining centers where both material removal rate and surface finish matter in the same operation. Its centercutting geometry allows plunge entry, and right-hand flute direction with right-hand cutting rotation aligns with standard spindle configurations. Primary material applications include steel and cast iron. Secondary material applications include stainless steel, non-ferrous metals, superalloys, titanium, and hard materials. The straight cylindrical shank with h6 tolerance is compatible with high-precision toolholders, collet chucks, and shrink-fit systems commonly used in precision shops.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5-flute solid carbide construction for rigidity in both roughing and finishing cuts\u003c\/li\u003e\n\u003cli\u003eAPLUS PVD coating provides wear resistance and reduced friction in ferrous and hard material applications\u003c\/li\u003e\n\u003cli\u003eVariable pitch design minimizes chatter and vibration at high RPM\u003c\/li\u003e\n\u003cli\u003e0.0600 inch corner radius reduces stress concentration and improves edge strength at workpiece corners\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry enables direct plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n\u003cli\u003eh6 shank diameter tolerance ensures repeatable runout performance in high-precision toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with high-precision toolholders including collet chucks and shrink-fit systems. Part of the HELICAL SOLUTIONS HEV-5 series. Suitable for primary workpiece materials steel and cast iron, and secondary workpiece materials stainless steel, non-ferrous metals, superalloys, titanium, and hard materials.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a CNC machinist or toolroom technician. Ensure the machine spindle is fully stopped and the tool changer is disabled before inserting or removing the tool. Use a high-precision toolholder rated for the shank diameter to maintain TIR within acceptable limits. Verify tool stick-out and runout with a dial indicator before beginning production cuts.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.7500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5000 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\u003eCorner Radius\u003c\/strong\u003e: 0.0600 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: -0.0020 to 0.0020 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: -0.0020 \/ 0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: -0.0620 \/ 0.0620 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR Maximum\u003c\/strong\u003e: 0.0005 inches\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: APLUS (PVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Variable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\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\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Non-Ferrous Metal, Superalloys and Titanium, Hard Material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HEV-5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.055 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: HELICAL SOLUTIONS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 45138\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HELICAL SOLUTIONS","offers":[{"title":"Default Title","offer_id":51735951606066,"sku":"45138","price":75.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c177c198f98f88cb58c443732cc4a023_cf6279ee-e1ce-42ef-b7d1-f668b472fe87.jpg?v=1788775095","url":"https:\/\/voomisupply.com\/products\/helical-solutions-45138-corner-radius-end-mill-1-4in-5-flute","provider":"Voomi Supply","version":"1.0","type":"link"}