{"product_id":"htc-120-4375-square-end-mill-3-8-in-4-flute-solid-carbide","title":"Htc 120-4375 Square End Mill 3\/8 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HTC 120-4375 is a solid carbide square end mill designed for precision milling operations in metal, composites, and other hard materials. With a 3\/8 inch mill diameter and 4 helical flutes, it delivers clean, square-shoulder cuts in a right-hand cutting direction. The 1 inch length of cut and 2.5 inch overall length make it well suited for standard-depth slotting, profiling, and peripheral milling. The bright, uncoated finish is appropriate for general-purpose applications where coatings are not required. This tool is a Series 120 single-end mill with a square shank, intended for use by machinists and tool-and-die professionals in CNC and manual milling setups.\u003c\/p\u003e\u003cp\u003eThe 120-4375 fits standard milling applications in job shops, maintenance machining, and production environments. The 3\/8 inch shank diameter seats directly into collet chucks, end mill holders, and Weldon-style tool holders commonly found on vertical mills and machining centers. It is a standard-length tool, not extended reach, making it appropriate for setups where rigidity and reduced deflection are priorities. The right-hand flute direction and helical flute geometry support efficient chip evacuation in typical ferrous and non-ferrous milling operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for hardness and wear resistance in demanding milling applications\u003c\/li\u003e\n\u003cli\u003e4 helical flutes with right-hand cutting and right-hand flute direction for efficient chip removal\u003c\/li\u003e\n\u003cli\u003e3\/8 inch mill diameter with matching 3\/8 inch square shank for direct collet or end mill holder mounting\u003c\/li\u003e\n\u003cli\u003e1 inch length of cut suitable for standard-depth slotting and profiling passes\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish for general-purpose use across a range of workpiece materials\u003c\/li\u003e\n\u003cli\u003eNon-centercutting design  -  not intended for plunge cutting; use for peripheral and slot milling only\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide square end mill for use in standard 3\/8 inch collet chucks, Weldon-style end mill holders, and compatible milling tool holders on CNC machining centers and manual vertical mills.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is powered down or in a safe state before changing tooling. Seat the shank fully into the tool holder and tighten to the holder manufacturer's specified torque using the appropriate wrench  -  do not overtighten or use makeshift tools. Verify runout with a dial indicator before beginning a cut, particularly in tight-tolerance applications.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 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\u003eLength of Cut\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches (0.375 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\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\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\u003eFlute Type\u003c\/strong\u003e: Helical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Square\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\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\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: 0.37 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: 120-4375\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HTC","offers":[{"title":"Default Title","offer_id":68363690017074,"sku":"120-4375","price":64.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/81c3d9d494f15616d51612630f555b52.jpg?v=1793882050","url":"https:\/\/voomisupply.com\/products\/htc-120-4375-square-end-mill-3-8-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}