{"product_id":"sandvik-coromant-5740171-square-shoulder-end-mill-1-1-2-in","title":"Sandvik Coromant 5740171 Square-shoulder End Mill 1-1\/2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5740171 is an indexable square-shoulder end mill built on the CoroMill 390 platform, designed for high-precision shoulder milling, face milling, and ramping operations on machining centers. The body is constructed from steel and accepts four R390-11 series screw-clamped inserts, producing a true 90-degree lead angle at the cutting edge. Cutting diameter is 1.5 inches, maximum depth of cut is 10.01 mm (0.394 inches), and the tool reaches a maximum spindle speed of 27,800 RPM. Through-coolant capability directs fluid directly to the cutting zone, supporting tool life and chip evacuation in demanding applications.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for metalworking operations in job shops, aerospace, and general manufacturing environments where square-shoulder profiles and tight tolerances are required. The Weldon flat shank measures 1.25 inches in diameter and provides positive drive in standard end mill holders. With a 4-inch overall length and four insert pockets, it is configured for moderate to high material removal rates on steel, cast iron, and similar workpiece materials. Machinists and CNC operators installing this tool should verify holder bore diameter and insert grade selection prior to running the program.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCoroMill 390 platform with 90-degree lead angle for true square-shoulder profiles\u003c\/li\u003e\n  \u003cli\u003eAccepts four R390-11 series indexable inserts secured by screw clamping\u003c\/li\u003e\n  \u003cli\u003eThrough-coolant design for improved chip evacuation and cutting zone temperature control\u003c\/li\u003e\n  \u003cli\u003eMaximum spindle speed of 27,800 RPM supports high-productivity machining\u003c\/li\u003e\n  \u003cli\u003eWeldon flat shank provides positive, anti-pullout drive in standard ER or Weldon holders\u003c\/li\u003e\n  \u003cli\u003eRamping-capable end mill geometry allows helical and linear ramp entry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with R390-11 series indexable inserts (insert compatibility designation R390-11..). Designed for use in machining centers and CNC milling equipment with through-spindle or through-tool coolant capability. Verify insert grade and geometry selection based on workpiece material before use.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the tool changer is disabled before mounting or removing the tool body. Confirm holder bore diameter matches the 1.25-inch Weldon flat shank and that clamping screws engage the flat properly to prevent axial pullout. Inspect insert seats and clamping screws for contamination or wear before seating new inserts; use the manufacturer-recommended torque driver for insert screw tightening.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 10.01 mm (0.394 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Weldon Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes \/ Insert Pockets\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: R390-11..\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 27,800\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Type\u003c\/strong\u003e: Ramping\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroMill 390\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Number\u003c\/strong\u003e: RA390-038M32-11M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.57 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: SANDVIK COROMANT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5740171\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51744000868658,"sku":"5740171","price":740.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8acef4a6e3c29ff4a47a9aeb66e39db1_d6dc1249-8990-4acf-aec9-73fc1034c401.jpg?v=1788852690","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5740171-square-shoulder-end-mill-1-1-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}