{"product_id":"kyocera-otm86404-indexable-square-shoulder-end-mill","title":"Kyocera OTM86404 Indexable Square-shoulder End Mill","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KYOCERA OTM86404 is an indexable square-shoulder end mill engineered for precision milling of aluminum and non-ferrous materials. It features a 1-inch cutting diameter, a 0.64-inch maximum depth of cut, and a 90-degree lead angle that produces true square shoulders in a single pass. The Weldon flat shank measures 0.75 inches in diameter and provides a secure, anti-pullout connection in compatible toolholders. With through-coolant capability, this end mill maintains cutting-edge temperatures during high-speed operations. It accepts APET 1604 insert style inserts secured by screw-lock retention, making insert changes fast and repeatable. Licensed machinists and CNC operators in job shops and production environments will find this tool well-suited to face milling, shoulder milling, and slotting operations.\u003c\/p\u003e\u003cp\u003eThe OTM86404 is built for the EM-AL cutter series and is a strong choice for aluminum aerospace components, mold work, and high-volume production runs where consistent wall perpendicularity is required. The 2-flute configuration supports chip evacuation in aluminum and soft alloys. With a 1.36-inch usable length and a 3.375-inch overall length, the tool fits standard vertical and horizontal machining centers as well as multi-axis CNC mills equipped with Weldon-flat toolholders. Through-coolant delivery helps clear chips from the cut zone and prolongs insert life in uninterrupted and interrupted cuts alike.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1-inch cutting diameter with 0.64-inch maximum depth of cut for square-shoulder profiling\u003c\/li\u003e\n\u003cli\u003e90-degree lead angle delivers true perpendicular walls in a single pass\u003c\/li\u003e\n\u003cli\u003e2-flute design with 2 APET 1604 insert seats for efficient chip evacuation in aluminum\u003c\/li\u003e\n\u003cli\u003eThrough-coolant compatible for temperature control and chip flushing\u003c\/li\u003e\n\u003cli\u003eWeldon flat shank (0.75 inches) provides positive anti-rotation drive engagement\u003c\/li\u003e\n\u003cli\u003eScrew-lock insert retention for fast, accurate insert indexing without disturbing setup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with APET 1604 insert style inserts in the KYOCERA EM-AL toolholder series. Requires a toolholder or spindle with a 0.75-inch Weldon flat bore to seat correctly.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Secure the Weldon flat shank fully into the toolholder bore and tighten the set screw against the flat to the toolholder manufacturer's specification before running. Confirm through-coolant passages are clear and that coolant pressure meets machine and insert manufacturer recommendations before cutting. Always power down and lock out the spindle before indexing or replacing inserts.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsable Length\u003c\/strong\u003e: 1.36 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 3.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Weldon Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutter Inserts\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: APET 1604\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\u003eCutter Series\u003c\/strong\u003e: EM-AL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough Coolant\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter of Screw to Cutting Edge\u003c\/strong\u003e: 2.365 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.42 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: KYOCERA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: OTM86404\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA","offers":[{"title":"Default Title","offer_id":51736494965042,"sku":"OTM86404","price":289.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/de8a522e35ebccf6e9ab91f5a30caacf.jpg?v=1788778252","url":"https:\/\/voomisupply.com\/products\/kyocera-otm86404-indexable-square-shoulder-end-mill","provider":"Voomi Supply","version":"1.0","type":"link"}