{"product_id":"kennametal-3742538-indexable-square-shoulder-end-mill","title":"Kennametal 3742538 Indexable Square Shoulder End Mill","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 3742538 is an indexable square-shoulder end mill designed for high-precision milling operations in metal cutting applications. Built around the Cutter Style Mill 1-10 platform, this tool accepts two EC10 or EP10 series inserts secured by screw clamping. It delivers a 3\/4-inch cutting diameter with a maximum depth of cut of 0.398 inches and a lead angle of zero degrees, making it well suited for true 90-degree shoulder milling. Through-coolant capability is standard, supporting heat management and chip evacuation at elevated spindle speeds up to 45,900 RPM. Installed by machinists and tool-and-die professionals in CNC machining centers, this body is a direct-mount solution for shops requiring repeatability in shoulder, slot, and peripheral milling.\u003c\/p\u003e\u003cp\u003eThis end mill body is used in vertical and horizontal CNC machining centers performing square-shoulder milling on ferrous and non-ferrous workpiece materials. The 3\/4-inch cylindrical shank interfaces directly with standard ER or end-mill-style holders. With an overall length of 6.7 inches and a head length of 1.25 inches, this tool fits standard reach requirements in medium-duty milling setups. Applications include face milling, shoulder profiling, and step milling where a clean 90-degree wall is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eZero-degree lead angle produces true 90-degree square shoulders in a single pass\u003c\/li\u003e\n\u003cli\u003eAccepts two EC10 or EP10 series inserts with screw-lock insert holding method\u003c\/li\u003e\n\u003cli\u003eThrough-coolant design with 0.236-inch coolant hole diameter for direct cutting zone cooling\u003c\/li\u003e\n\u003cli\u003eMaximum spindle speed of 45,900 RPM supports high-efficiency machining strategies\u003c\/li\u003e\n\u003cli\u003e3\/4-inch cylindrical shank for compatibility with standard end mill holders\u003c\/li\u003e\n\u003cli\u003e6.7-inch overall length and 1.25-inch head length for medium-reach applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with EC10 and EP10 series indexable inserts. No additional compatible model or system information was provided in the product data.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool body is installed and serviced by qualified machinists or tooling setup technicians. Before changing inserts or mounting the tool body, ensure the machine spindle is fully stopped and the control is in an e-stop or locked-out state following applicable OSHA lockout\/tagout procedures. Confirm the coolant port is clear before engaging through-coolant flow. Do not exceed the rated maximum RPM of 45,900 as stated in the tool body specification.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.398 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Length\u003c\/strong\u003e: 1.25 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: Cylindrical\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 Compatibility\u003c\/strong\u003e: EC10, EP10\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: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 45,900\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Hole Diameter\u003c\/strong\u003e: 0.236 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutter Style\u003c\/strong\u003e: Mill 1-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Number\u003c\/strong\u003e: M1D075E1002C075L670\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.6 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: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3742538\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51731045712178,"sku":"3742538","price":589.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1076e7d40fa659730c14c1ea72b7bde4.jpg?v=1788726223","url":"https:\/\/voomisupply.com\/products\/kennametal-3742538-indexable-square-shoulder-end-mill","provider":"Voomi Supply","version":"1.0","type":"link"}