{"product_id":"hertel-gg99914179-square-end-mill-0-125-in-4-flute-hss","title":"Hertel GG99914179 Square End Mill 0.125 in 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL GG99914179 is a double-end square end mill designed for precision milling operations in metal and composite materials. Built from M7 grade high speed steel, it delivers reliable performance in general-purpose cutting applications. The tool features a 0.125 inch mill diameter, a 0.1875 inch length of cut, and a 30-degree helix angle with spiral flutes. With 4 flutes and right-hand cut and flute direction, it is suited for finish milling passes where consistent chip evacuation and surface quality matter. Machinists and tool-and-die professionals are the primary users of this end mill.\u003c\/p\u003e\n\u003cp\u003eThis end mill fits standard machining center setups and manual milling machines that accept a 0.375 inch shank diameter. The 2.75 inch overall length provides adequate reach for most workholding configurations without sacrificing rigidity. The uncoated M7 HSS construction makes it a practical choice for shops running lower-speed operations or machining softer materials where coating is not required. It is sold individually and is appropriate for both production and prototype work where a small-diameter, double-end tool reduces downtime from tool changes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM7 grade high speed steel construction for general-purpose durability\u003c\/li\u003e\n  \u003cli\u003eDouble-end design extends usable tool life per unit\u003c\/li\u003e\n  \u003cli\u003e30-degree helix angle with spiral flutes for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003e4-flute configuration suited for finish milling passes\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute direction for standard spindle use\u003c\/li\u003e\n  \u003cli\u003eUncoated finish for compatibility with lower-speed machining setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard tooling option for milling machines and machining centers accepting a 0.375 inch shank diameter with ER or collet-style toolholders.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist following standard toolholding procedures. Ensure the machine spindle is fully powered down and locked before inserting or removing the end mill from the collet or toolholder. Verify runout with a dial indicator after seating the shank to confirm proper alignment before cutting. Follow applicable shop safety standards and machine manufacturer guidelines for speed and feed selection with HSS tooling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.125 inches (1\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.75 inches (2-3\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M7\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: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.504 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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: GG99914179\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51728677601586,"sku":"GG99914179","price":29.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5110d0c4a35a33dd59f9eae015439e5e.jpg?v=1788694839","url":"https:\/\/voomisupply.com\/products\/hertel-gg99914179-square-end-mill-0-125-in-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}