{"product_id":"accupro-acc-tbb312-boring-bar-right-hand-micrograin","title":"Accupro ACC-TBB312 Boring Bar Right Hand Micrograin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO ACC-TBB312 is a solid micrograin carbide boring bar designed for internal diameter turning and boring operations on lathes and machining centers. With a minimum bore diameter of 0.413 inches and a maximum bore depth of 2.5 inches, it handles tight-tolerance work in small-diameter bores. The 5\/16-inch shank diameter and 5-inch overall length make it suitable for compact toolholders and CNC turret setups. The bright finish coating and micrograin carbide grade deliver consistent performance in ferrous and non-ferrous materials. This bar is installed by machinists and tool-and-die professionals in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThe ACC-TBB312 is suited for internal boring applications in both manual lathe and CNC turning center setups. Its right-hand cutting direction is standard for conventional boring operations where the spindle rotates counterclockwise as viewed from the tailstock. The compact shank and short-to-medium bore depth range make it a practical choice for small-part work, fixture boring, and precision hole finishing where close dimensional control is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin carbide construction for wear resistance and edge retention\u003c\/li\u003e\n  \u003cli\u003eMinimum bore diameter of 0.413 inches for small-diameter internal work\u003c\/li\u003e\n  \u003cli\u003eMaximum bore depth of 2.5 inches suits a wide range of part geometries\u003c\/li\u003e\n  \u003cli\u003e5\/16-inch shank diameter fits standard small-bore toolholders\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut configuration for conventional lathe and CNC turning operations\u003c\/li\u003e\n  \u003cli\u003eBright finish coating for smooth chip flow and reduced built-up edge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style boring bar for use in standard 5\/16-inch shank boring bar holders on manual lathes and CNC turning centers.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eBoring bars of this type are installed and set by qualified machinists following shop safety protocols. Secure the shank fully in the toolholder to minimize overhang and reduce vibration before taking any cuts. Ensure the machine spindle is fully stopped and locked out before changing or adjusting tooling. Follow the machine tool manufacturer guidelines and applicable ANSI machining standards for setup and operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.413 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3125 inches (5\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.75 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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ACC-TBB312\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51736063246642,"sku":"ACC-TBB312","price":71.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7fc0831f96b89444b6e4c10cd8643301.jpg?v=1788775707","url":"https:\/\/voomisupply.com\/products\/accupro-acc-tbb312-boring-bar-right-hand-micrograin","provider":"Voomi Supply","version":"1.0","type":"link"}