{"product_id":"accupro-acc-tbb250-boring-bar-right-hand-micrograin","title":"Accupro ACC-TBB250 Boring Bar Right Hand Micrograin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO ACC-TBB250 is a solid micrograin carbide boring bar designed for precision internal turning and bore finishing operations on metal lathes and machining centers. With a minimum bore diameter of 0.32 inches and a maximum bore depth of 2 inches, it handles tight-tolerance work in small-diameter bores. The 1\/4-inch shank diameter and 4-inch overall length make it compatible with standard tool holders used in light to medium turning setups. The bright finish coating reduces friction and aids chip evacuation. This tool is installed and used by machinists, tool-and-die makers, and CNC lathe operators requiring consistent, repeatable bore geometry.\u003c\/p\u003e\n\u003cp\u003eThe ACC-TBB250 is suited for right-hand cut boring applications in ferrous and non-ferrous materials where bore accuracy and surface finish are critical. Typical applications include enlarging, finishing, and truing bored holes in workpieces held in chucks or fixtures on manual lathes, CNC turning centers, and boring mills. The compact shank size makes it well-matched to small-part machining environments and Swiss-style or sub-spindle setups where clearance is limited.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin carbide construction provides hardness and edge retention for extended tool life in precision boring\u003c\/li\u003e\n  \u003cli\u003eMinimum bore diameter of 0.32 inches enables work in small, tight-tolerance bores\u003c\/li\u003e\n  \u003cli\u003eMaximum bore depth of 2 inches suits a wide range of short to medium-depth internal turning passes\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut orientation for standard lathe and turning center setups\u003c\/li\u003e\n  \u003cli\u003eBright finish coating reduces built-up edge and improves chip flow\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch shank diameter fits common small-bore tool holders and blocks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement or addition for tool holders accepting a 1\/4-inch shank diameter boring bar in manual lathe and CNC turning center applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists following standard tooling setup procedures. Secure the shank firmly in the tool holder, ensuring adequate overhang is minimized to reduce chatter and deflection. Power down and lock out the machine spindle before mounting or removing the boring bar. Follow the machine manufacturer guidelines and applicable shop safety codes when setting tool height and runout.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoring Bar Type\u003c\/strong\u003e: Boring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\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-TBB250\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51731912884530,"sku":"ACC-TBB250","price":70.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c35368ccdd6ff12a98c19c6f717041f3.jpg?v=1788736498","url":"https:\/\/voomisupply.com\/products\/accupro-acc-tbb250-boring-bar-right-hand-micrograin","provider":"Voomi Supply","version":"1.0","type":"link"}