{"product_id":"osg-5743900-square-end-mill-1-in-4-flute-vanadium-hss","title":"Osg 5743900 Square End Mill 1 in 4 Flute Vanadium Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 5743900 is a single-end square end mill designed for general-purpose milling in ferrous and non-ferrous metals. Built from 3% vanadium high speed steel, it delivers good wear resistance and edge retention at moderate cutting speeds without the cost of carbide tooling. The 1 inch cutting diameter and 2 inch length of cut make it well suited for slotting, peripheral milling, and light profiling. With a 30-degree spiral helix, right-hand cut, and right-hand flute geometry, it evacuates chips efficiently and reduces chatter during full-width passes. Licensed machinists and tool-and-die professionals are the primary users of this tool.\u003c\/p\u003e\u003cp\u003eThis end mill fits standard 1 inch diameter tool holders and collet chucks found on vertical machining centers, knee mills, and manual Bridgeport-style machines. The regular-length designation and 4.5 inch overall length make it a practical general-shop tool for production floors, maintenance departments, and job shops running medium-carbon steels, alloy steels, and aluminum. The uncoated finish allows easy re-sharpening on conventional surface or tool grinders.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3% vanadium high speed steel construction for improved wear life over standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eCenter-cutting geometry allows direct plunge entry into workpieces\u003c\/li\u003e4-flute configuration provides a good balance of chip clearance and surface finish\u003cli\u003e30-degree helix angle promotes smooth chip flow and reduced cutting forces\u003c\/li\u003e\n\u003cli\u003eUncoated finish simplifies re-sharpening and reconditioning\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute for standard CNC and manual mill spindle direction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard-shank replacement end mill for use in 1 inch diameter end mill holders, side-lock holders, and collet chucks on vertical mills and machining centers.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists following standard toolroom practice. De-energize and lock out the spindle drive before changing tooling. Seat the shank fully in the holder and torque the retention screw or collet nut to the holder manufacturer's specification. Verify runout with a dial indicator before initiating a cut, as excessive runout accelerates flute wear and degrades surface finish.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Vanadium High Speed Steel (3% Vanadium)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 574\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5743900\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51754599350578,"sku":"5743900","price":114.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a8036d64930972e8c5387fbd73b4aa32.jpg?v=1788946992","url":"https:\/\/voomisupply.com\/products\/osg-5743900-square-end-mill-1-in-4-flute-vanadium-hss","provider":"Voomi Supply","version":"1.0","type":"link"}