{"product_id":"robbjack-t12-203-08-square-end-mill-1-4-in-2-flute-carbide","title":"Robbjack T12-203-08 Square End Mill 1\/4 in 2 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ROBBJACK T12-203-08 is a solid carbide square end mill engineered for precision milling in ferrous and non-ferrous materials. Part of the T12-203 Series in the Tuffy material grade line, this tool features a 0.25 inch cutting diameter, a 0.75 inch length of cut, and a 3\/8 inch straight-cylindrical shank with a 2.5 inch overall length. The 2-flute, right-hand spiral design with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. The centercutting geometry allows plunge entry without pre-drilling. It is an uncoated tool intended for applications where coating would interfere with tolerances or where re-grinding is planned. Machinists and CNC operators in job shops and production facilities are the primary users.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for slotting, profiling, and plunging operations on a CNC machining center or manual mill. The regular-length configuration and straight shank make it a standard fit for collet and end mill holders commonly used in light-to-medium duty milling setups. The 2-flute design favors softer materials and applications requiring aggressive chip clearance, such as aluminum, plastics, and some steels within the appropriate feeds and speeds for the Tuffy carbide grade.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide Tuffy grade construction for rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003e0.25 inch cutting diameter with mill diameter tolerance of +0.001 \/ -0.000 inches\u003c\/li\u003e\n\u003cli\u003e2-flute, right-hand cut and right-hand flute spiral geometry\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle for effective chip evacuation\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge entry\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank at 3\/8 inch diameter for standard collet compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard-fitment replacement or production end mill for CNC machining centers and manual mills accepting a 3\/8 inch straight-cylindrical shank; part of the ROBBJACK T12-203 Series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator. Secure the shank fully into the collet or end mill holder to the recommended engagement depth before tightening. Verify runout with a dial indicator before commencing a cut. Always power down and lock out the spindle before changing tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 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\u003eNumber of Flutes\u003c\/strong\u003e: 2\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.001 \/ -0.000 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: T12-203\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: T12-203-08\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROBBJACK","offers":[{"title":"Default Title","offer_id":51971557458226,"sku":"T12-203-08","price":123.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9e39ac9d30c28212f158b109429fc91e_47515891-be84-4d89-baa1-cc6966d599e5.jpg?v=1789958663","url":"https:\/\/voomisupply.com\/products\/robbjack-t12-203-08-square-end-mill-1-4-in-2-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}