{"product_id":"sgs-40121-square-end-mill-3mm-4-flute-solid-carbide","title":"Sgs 40121 Square End Mill 3mm 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SGS 40121 is a 4-flute solid carbide square end mill designed for precision milling in a wide range of metalworking applications. With a 3 mm cutting diameter and a 12 mm length of cut, this tool delivers clean, accurate results in ferrous and non-ferrous materials. The micrograin carbide construction provides rigidity and wear resistance at small diameters. A 30-degree helix angle promotes efficient chip evacuation, while the variable index design reduces harmonic vibration during aggressive cuts. The bright, uncoated finish suits applications where coating interaction with the workpiece material is a concern. This is a single-end, right-hand cut tool with a straight cylindrical shank.\u003c\/p\u003e\u003cp\u003eThe SGS 40121 is suited for light-to-medium milling operations in materials classified under workpiece material codes H, K, M, N, P, and S — covering cast iron, non-ferrous metals, stainless steel, steel alloys, and superalloys. Its compact 3 mm diameter makes it a fit for fine-detail slotting, profiling, and pocketing work on CNC machining centers and manual mills where tight tolerances and small feature geometry are required. The regular-length configuration keeps deflection minimal in close-tolerance work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3 mm cutting diameter with a mill diameter tolerance of +0.000 \/ -0.050 mm for precise fitment\u003c\/li\u003e\n\u003cli\u003e4 flutes with variable index geometry to reduce chatter and improve surface finish\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide construction for hardness and edge retention at small diameters\u003c\/li\u003e\n\u003cli\u003e30-degree right-hand spiral flutes promote efficient chip flow and reduce heat buildup\u003c\/li\u003e\n\u003cli\u003eCenter-cutting capable — supports plunge entry cuts\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for a broad range of workpiece materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with workpiece materials designated under codes H, K, M, N, P, and S, including cast iron, non-ferrous metals, stainless steel, general steel alloys, and superalloys. Belongs to SGS Series 1M.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle and tool holder are clean and free of debris before seating the straight cylindrical shank. Verify runout at the tool tip after installation — excessive runout at this diameter accelerates edge wear. Always confirm spindle speed, feed rate, and depth of cut are appropriate for the workpiece material before initiating a cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3 mm (0.1181 inches)\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: 12 mm (0.4724 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 38 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3 mm (0.1181 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\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: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide, Micrograin Grade\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: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\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\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000 \/ -0.050 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: +0.000 \/ -0.006 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Codes\u003c\/strong\u003e: H, K, M, N, P, S\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SGS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 40121\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA SGS PRECISION TOOLS","offers":[{"title":"Default Title","offer_id":51753709633842,"sku":"40121","price":30.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c29c745fd26f6a9bbac6812725be3da0.jpg?v=1788939843","url":"https:\/\/voomisupply.com\/products\/sgs-40121-square-end-mill-3mm-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}