{"product_id":"robbjack-c8-201-08-square-end-mill-1-4-in-2-flute-carbide","title":"Robbjack C8-201-08 Square End Mill 1\/4 in 2 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ROBBJACK C8-201-08 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. Measuring 0.250 inches in diameter with a 0.500-inch length of cut and a 2.000-inch overall length, this stub-length tool delivers rigid, chatter-resistant performance in shallow-to-moderate depth cuts. The 2-flute, spiral flute geometry with a 30-degree helix angle promotes efficient chip evacuation, making it well-suited for slotting, profiling, and peripheral milling. It is centercutting, allowing direct plunge entry without a pre-drilled hole. Machinists and CNC operators in job shops, tool rooms, and production environments are the primary users of this tool.\u003c\/p\u003e\n\u003cp\u003eThis end mill is built for right-hand cut, right-hand flute applications on CNC machining centers and manual mills. The stub-length design reduces overhang for improved rigidity when working in tight setups or on harder workpiece materials. The uncoated C2-grade solid carbide construction is appropriate for use on non-ferrous metals, plastics, and general-purpose ferrous materials where a coated tool is not required. Its straight-cylindrical shank fits standard collet chucks and end mill holders with 1\/4-inch bore.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide C2-grade construction for wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003e2-flute spiral geometry with 30-degree helix for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows direct plunge milling without pre-drilling\u003c\/li\u003e\n  \u003cli\u003eStub-length body reduces overhang and improves rigidity under load\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute for standard CNC and manual mill spindles\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for non-ferrous metals, plastics, and general ferrous applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard 1\/4-inch bore collet chucks and end mill holders on CNC machining centers and manual milling machines. Part of the ROBBJACK Series C8-201 stub-length square end mill line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the straight-cylindrical shank fully into the collet or holder and torque the retention mechanism to the toolholder manufacturer specification. Verify runout with a dial indicator before commencing a cut, as excessive runout accelerates carbide edge wear and reduces surface finish quality.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.2500 inches (+0.000 \/ -0.002 inches tolerance)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches (-0.0001 \/ -0.0002 inches tolerance)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.0000 inches (+0.060 \/ -0.060 inches tolerance)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eCentercutting\u003c\/strong\u003e: Yes\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: C2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: C8-201\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.125 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: ROBBJACK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C8-201-08\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROBBJACK","offers":[{"title":"Default Title","offer_id":51986598854962,"sku":"C8-201-08","price":58.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a49daf480ab1896078988c3df93d378b.jpg?v=1789986307","url":"https:\/\/voomisupply.com\/products\/robbjack-c8-201-08-square-end-mill-1-4-in-2-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}