{"product_id":"robbjack-str-301-24-c-square-end-mill-3-4-in-3-flute-carbide","title":"Robbjack STR-301-24-C Square End Mill 3\/4 in 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ROBBJACK STR-301-24-C is a solid carbide square end mill designed for precision metal removal in milling operations. It features a 3\/4 inch cutting diameter, a 1 inch length of cut, and a 4 inch overall length with a 3\/4 inch shank diameter. The three-flute, right-hand cut and right-hand flute geometry delivers efficient chip evacuation and a clean finish. A TiCN coating provides elevated hardness and wear resistance, extending tool life in ferrous and non-ferrous applications. The 30-degree helix angle balances cutting force with surface finish quality. This end mill is centercutting, allowing plunge entry directly into the workpiece.\u003c\/p\u003e\n\u003cp\u003eThe STR-301-24-C is suited for general-purpose milling in machine shops running vertical and horizontal CNC machining centers or manual knee mills. Its stub-length profile and fine-pitch flute configuration make it well-matched for finishing passes and light-to-moderate slotting and profiling operations. The solid carbide construction performs in harder workpiece materials where high-speed steel tooling falls short. It is installed and operated by machinists and CNC programmers in job shops, production facilities, and toolrooms.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/4 inch cutting diameter with 1 inch length of cut for controlled material engagement\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in demanding materials\u003c\/li\u003e\n  \u003cli\u003eTiCN coating increases surface hardness and reduces tool wear\u003c\/li\u003e\n  \u003cli\u003e30-degree helix angle balances cutting forces and improves surface finish\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows direct plunge milling without a pre-drilled entry point\u003c\/li\u003e\n  \u003cli\u003eFine-pitch, right-hand flute geometry with stub-length profile for stability in short-reach setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style solid carbide square end mill for use in standard 3\/4 inch collet chucks, end mill holders, and hydraulic or shrink-fit toolholders on CNC and manual milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the shank fully into the holder and torque the retention mechanism to the toolholder specification. Verify runout with a dial indicator before beginning a cut to protect both the tool and the workpiece.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut (LOC)\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Square, Centercutting, Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Fine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3125 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: ROBBJACK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: STR-301-24-C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROBBJACK","offers":[{"title":"Default Title","offer_id":52079599124786,"sku":"STR-301-24-C","price":694.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/52efb804ef7a93f06bf81a3f1c2db337_65d568b3-3056-4baa-bb00-db706a2bbc82.jpg?v=1790054920","url":"https:\/\/voomisupply.com\/products\/robbjack-str-301-24-c-square-end-mill-3-4-in-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}