{"product_id":"robbjack-ts-401-12-square-end-mill-3-8-in-4-flute-carbide","title":"Robbjack TS-401-12 Square End Mill 3\/8 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ROBBJACK TS-401-12 is a solid carbide square end mill designed for precision milling in metal, composites, and other hard materials. Part of the TS-401 Series, this stub-length tool features a 3\/8 inch cutting diameter, 5\/8 inch length of cut, and a 30-degree helix angle with four right-hand spiral flutes. The centercutting geometry allows both plunge and peripheral cutting operations. At 2-1\/2 inches overall length with a straight cylindrical 3\/8 inch shank, it fits standard collet chucks and tool holders used in CNC machining centers and manual mills. Machinists and toolroom operators use this uncoated carbide end mill for slotting, profiling, and contouring applications.\u003c\/p\u003e\u003cp\u003eThe TS-401-12 is suited for light to moderate material removal in ferrous and non-ferrous workpieces where a stub-length tool provides added rigidity and reduced deflection. The Tuffy material grade solid carbide construction handles demanding cuts with consistent dimensional accuracy. The uncoated finish makes it a solid baseline choice for general-purpose milling or applications where coating compatibility with cutting fluids or materials is a consideration. CNC machinists and manual mill operators working in job shop or production environments will find this tool appropriate for finish and semi-finish milling passes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide Tuffy grade construction for durability in demanding milling applications\u003c\/li\u003e\n\u003cli\u003eFour right-hand spiral flutes with 30-degree helix angle for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCentercutting design enables plunge entry and slot milling\u003c\/li\u003e\n\u003cli\u003eStub length at 5\/8 inch LOC provides increased rigidity and reduced deflection\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard collet chucks and end mill holders\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for general-purpose use across a range of workpiece materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use solid carbide square end mill for standard 3\/8 inch collet chucks, shrink-fit holders, and end mill holders used in 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 before changing tooling. Secure the shank to the recommended engagement depth in the tool holder and torque the collet nut or set screw per the tool holder manufacturer specifications. Verify runout with a dial indicator before beginning cuts, as excessive runout accelerates tool wear and reduces dimensional accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 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\u003eMaterial Grade\u003c\/strong\u003e: Tuffy\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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000 \/ -0.003 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 \/ -0.0002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: +0.060 \/ -0.060 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: TS-401\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.125 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: ROBBJACK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TS-401-12\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROBBJACK","offers":[{"title":"Default Title","offer_id":52041168060722,"sku":"TS-401-12","price":115.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fc714ba03b9b56393853d8abf15b32ec_333cecbf-0e4d-4167-8248-7fcaf93ce6b7.jpg?v=1790027567","url":"https:\/\/voomisupply.com\/products\/robbjack-ts-401-12-square-end-mill-3-8-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}