{"product_id":"robbjack-st-434-16-c-corner-chamfer-end-mill-1-2-in-4-flute","title":"Robbjack ST-434-16-C Corner Chamfer End Mill 1\/2 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ROBBJACK ST-434-16-C is a single-end corner chamfer end mill ground from solid carbide and coated with TiCN via a PVD process. It carries a 0.5 inch cutting diameter, a 1 inch length of cut, and a 45-degree chamfer angle with a chamfer width of 0.0060 inch. Four right-hand helical flutes at a 30-degree medium helix angle deliver efficient chip evacuation during both roughing and finishing passes. The 0.5 inch straight-cylindrical shank fits standard collet and end mill holders. Overall length is 3 inches. Licensed machinists and CNC operators working in job shop, production, and toolroom environments are the primary users of this tool.\u003c\/p\u003e\n\u003cp\u003eThe ST-434-16-C is suited for side milling, edge chamfering, and corner-break operations on steel, stainless steel, cast iron, superalloys, and titanium. The TiCN coating improves wear resistance and surface hardness, extending tool life in abrasive and high-temperature cutting conditions. It is appropriate for use on vertical machining centers, horizontal machining centers, and manual mills where a consistent 45-degree corner chamfer is required on ferrous and exotic-alloy workpieces.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and heat resistance in demanding cuts\u003c\/li\u003e\n  \u003cli\u003eTiCN PVD coating increases surface hardness and reduces built-up edge on steel and stainless steel\u003c\/li\u003e\n  \u003cli\u003e45-degree chamfer angle with 0.0060 inch chamfer width for precise edge-break geometry\u003c\/li\u003e\n  \u003cli\u003e4 right-hand flutes at 30-degree medium helix for balanced chip flow in roughing and finishing\u003c\/li\u003e\n  \u003cli\u003eSingle-end design with straight-cylindrical shank for direct collet or end mill holder mounting\u003c\/li\u003e\n  \u003cli\u003eCompatible with steel, stainless steel, cast iron, superalloys, and titanium workpiece materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting steel, stainless steel, cast iron, superalloys, and titanium as stated by the manufacturer. Part of the ROBBJACK ST-434 series. Fits any standard 1\/2 inch collet or end mill holder on vertical or horizontal machining centers.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation should be performed by qualified machinists or CNC operators familiar with end mill tooling. Verify spindle runout and holder concentricity before securing the shank; excessive runout accelerates wear and can cause premature tool failure. Follow machine tool manufacturer guidelines for speed and feed parameters appropriate to workpiece material and depth of cut. Ensure the machine spindle is fully stopped and locked out before changing or inspecting the tool.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Width\u003c\/strong\u003e: 0.0060 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Medium\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\u003eEnd Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN (PVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys and Titanium\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\u003eCentercutting\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.0010 to -0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: -0.0600 to +0.0600 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1875 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: ST-434-16-C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROBBJACK","offers":[{"title":"Default Title","offer_id":51972135551282,"sku":"ST-434-16-C","price":225.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/22e74466124f21a5f4dfc1f72b1ee2a8.jpg?v=1789963239","url":"https:\/\/voomisupply.com\/products\/robbjack-st-434-16-c-corner-chamfer-end-mill-1-2-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}