{"product_id":"robbjack-sb-301-06-ball-end-mill-3-flute-solid-carbide","title":"Robbjack SB-301-06 Ball End Mill 3 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ROBBJACK SB-301-06 is a 3-flute solid carbide ball end mill in a stub-length configuration, designed for both roughing and finishing operations on a single pass. It carries a 0.1875-inch (3\/16-inch) mill diameter, a 0.3125-inch length of cut, and a 2.0-inch overall length. The ball nose geometry produces a 0.0938-inch nose radius, which is suited to producing contoured surfaces and blended profiles. The uncoated, bright finish on Metric Tuffy Grade carbide makes this mill appropriate for dry or standard-coolant machining environments. Machinists and tool-and-die professionals working in job shops, mold work, and general precision machining are the primary installers of this tool.\u003c\/p\u003e\u003cp\u003eThis end mill is primarily suited for cutting cast iron and non-ferrous metals. The stub-length body reduces overhang and increases rigidity, which is useful in tight-clearance setups or shallow-cavity work where deflection would otherwise affect surface finish or dimensional accuracy. The 30-degree medium helix angle promotes smooth chip evacuation while maintaining cutting stability. Right-hand cutting and right-hand flute direction are standard for conventional vertical and horizontal machining center setups. The straight-cylindrical shank fits standard collet chucks and end mill holders sized for 3\/16-inch shanks.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3-flute ball end geometry with a 0.0938-inch nose radius for contoured and profiled surfaces\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction in Metric Tuffy Grade for wear resistance on cast iron and non-ferrous metals\u003c\/li\u003e\n\u003cli\u003eStub-length body reduces overhang and improves rigidity in shallow-cavity and tight-clearance cuts\u003c\/li\u003e\n\u003cli\u003e30-degree medium helix angle supports both roughing and finishing in a single tool\u003c\/li\u003e\n\u003cli\u003eUncoated bright finish compatible with dry machining and standard coolant applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand helical flutes; no chipbreaker for clean, continuous chip flow\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard collet chucks and end mill holders accepting a 3\/16-inch straight-cylindrical shank. Primary workpiece materials are cast iron (ISO K) and non-ferrous metals (ISO N). Part of the ROBBJACK SB-301 series stub-length ball end mill line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists on CNC or manual milling machines using a collet chuck or end mill holder matched to the 3\/16-inch shank diameter. Confirm the spindle and workholding are fully stopped and locked out before changing tooling. Check runout at the shank with a dial indicator before beginning a cut, as excessive runout on a stub-length tool will directly affect surface finish. Do not exceed the manufacturer-rated speeds and feeds for the workpiece material being cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.3125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.0 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 0.0938 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated \/ Bright\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: Helical\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.0000 \/ -0.0020 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: +0.0600 \/ -0.0600 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\u003eWeight\u003c\/strong\u003e: 0.0625 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: SB-301\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: SB-301-06\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROBBJACK","offers":[{"title":"Default Title","offer_id":51985582522674,"sku":"SB-301-06","price":68.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1c57c570bdea401025991b2a840d35a7_8d18a6a5-4e4b-4689-95c5-cb58bba6dfba.jpg?v=1789985571","url":"https:\/\/voomisupply.com\/products\/robbjack-sb-301-06-ball-end-mill-3-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}