{"product_id":"htc-120-4312-square-end-mill-5-16-in-4-flute-solid-carbide","title":"Htc 120-4312 Square End Mill 5\/16 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HTC 120-4312 is a solid carbide square end mill designed for precision milling operations in metal, composites, and engineered materials. With a 5\/16 inch mill diameter and 4-flute helical geometry, it delivers clean, accurate cuts in both slotting and peripheral milling applications. The bright, uncoated finish is suited to applications where coating buildup or heat sensitivity is a concern. At 2.5 inches overall length with a 7\/8 inch length of cut, this is a standard-reach tool built for rigid setups where chatter control and surface finish are priorities. Solid carbide construction provides the stiffness and wear resistance required for consistent performance across production runs.\u003c\/p\u003e\u003cp\u003eThis end mill is intended for use in CNC machining centers and manual mills where right-hand cutting and right-hand helical flutes are standard. It fits applications in job shops, tool rooms, and production environments handling ferrous and non-ferrous workpieces. The 5\/16 inch shank diameter matches the 5\/16 inch mill diameter for direct collet chucking without reduction bushings. It is a single-end, non-centercutting tool, meaning it is not designed for direct plunge entry and should be used with ramp or helical entry strategies when full-depth engagement is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and extended tool life\u003c\/li\u003e\n\u003cli\u003e4-flute helical geometry improves surface finish and chip evacuation\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for dry cutting or standard cutting fluid applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute direction for standard spindle operation\u003c\/li\u003e\n\u003cli\u003eNon-centercutting design  -  requires ramp or helical entry for plunge moves\u003c\/li\u003e\n\u003cli\u003eStandard length profile reduces deflection in rigid setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide square end mill suitable for use in standard ER and straight-bore collet systems accepting a 5\/16 inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the shank to the recommended minimum engagement depth in the collet or chuck per the toolholder manufacturer guidelines. Verify runout at the tool tip after clamping before beginning the cut, as excessive runout accelerates 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: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 7\/8 inches (0.875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/16 inches (0.3125 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: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Helical\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\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Square\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 120\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.31 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HTC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 120-4312\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HTC","offers":[{"title":"Default Title","offer_id":68404163543346,"sku":"120-4312","price":33.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1fe45950268c1e03f4a7ac6076e6dc6f.jpg?v=1793914427","url":"https:\/\/voomisupply.com\/products\/htc-120-4312-square-end-mill-5-16-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}