{"product_id":"micro-100-20-0821-indexable-boring-bar-a04f-sclcr-2","title":"Micro 100 20-0821 Indexable Boring Bar A04F-SCLCR 2","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MICRO 100 20-0821 is a right-hand indexable boring bar designed for precision internal turning and facing operations on CNC lathes and manual turning centers. Built to the A04F-SCLCR 2 toolholder style, it accepts 50-1100 series inserts and delivers consistent, repeatable performance in tight-bore applications. The bar features a 1\/4-inch shank diameter and a 3.1-inch overall length, with a minimum bore diameter of 0.33 inches. Coolant-through capability supports chip evacuation and heat management during deeper or interrupted cuts. Machinists and toolroom technicians working on precision bore finishing will find this bar suited to close-tolerance work.\u003c\/p\u003e\u003cp\u003eThis boring bar is intended for internal diameter turning and facing operations on metals and engineered materials. The A04F-SCLCR 2 geometry targets 90-degree lead-angle cuts, making it effective for square-shoulder boring and facing in a single setup. Typical applications include production turning environments and job-shop operations where indexable insert tooling is preferred over solid-carbide boring bars for cost-per-edge efficiency and setup flexibility.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eA04F-SCLCR 2 toolholder style supports 90-degree boring and facing operations\u003c\/li\u003e\n\u003cli\u003eMinimum bore diameter of 0.33 inches enables work in small internal diameters\u003c\/li\u003e\n\u003cli\u003eRight-hand cut orientation for standard lathe spindle rotation\u003c\/li\u003e\n\u003cli\u003eCompatible with 50-1100 series indexable inserts\u003c\/li\u003e\n\u003cli\u003eCoolant-through design aids chip removal and tool life in continuous cuts\u003c\/li\u003e\n\u003cli\u003eCompact 3.1-inch OAL fits tight turret and toolpost clearances\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eAccepts 50-1100 series indexable inserts. Designed as an OEM-style indexable boring bar for CNC and manual turning centers requiring a 1\/4-inch shank with A04F-SCLCR 2 toolholder geometry.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians. Secure the shank fully within the tool block or turret bore to the recommended clamping depth before engaging the workpiece. Power down or engage the E-stop on the machine before changing inserts or repositioning the bar in the holder. Verify insert seating and screw torque according to the insert manufacturer specification before resuming cuts.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: A04F-SCLCR 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.33 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand of Holder\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: 50-1100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.074 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241601\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MICRO 100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 20-0821\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MICRO 100","offers":[{"title":"Default Title","offer_id":52109912375602,"sku":"20-0821","price":128.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/66211664750e56c0f751302e3df7becf_6afa45a1-d634-4e8f-9966-e3b9a1ca03ba.jpg?v=1790075926","url":"https:\/\/voomisupply.com\/products\/micro-100-20-0821-indexable-boring-bar-a04f-sclcr-2","provider":"Voomi Supply","version":"1.0","type":"link"}