{"product_id":"sumitomo-2000w27-indexable-boring-bar-0-375-in-right-hand","title":"Sumitomo 2000W27 Indexable Boring Bar 0.375 in Right Hand","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO 2000W27 is a right-hand BSTJO-series indexable boring bar designed for precision internal turning and boring operations on CNC lathes and turning centers. Built from steel, it accepts TPGT 63 triangular inserts held by screw clamp, with a negative rake angle of -8 degrees and a 2-degree lead angle that promotes stable cutting and controlled chip formation. The 0.375-inch minimum bore diameter and 5-inch overall length make this bar suited to small-diameter, deep-reach boring applications where rigidity and insert repeatability are critical. Machinists and toolroom professionals select this bar for finishing and semi-finishing passes in small bores.\u003c\/p\u003e\u003cp\u003eThis boring bar is intended for use in small-bore internal machining operations on metal components in production, job shop, and toolroom environments. The 0.375-inch shank diameter matches the minimum bore diameter, allowing entry into tight bores. The BSTJO holder style with TPGT 63 insert compatibility is commonly applied when a sharp, triangular insert geometry is required for light-to-moderate cutting forces in ferrous and non-ferrous materials. Compatible insert inscribed circle is 3\/4 inch with a compatible insert thickness of 0.094 inches.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.375-inch minimum bore diameter for small-diameter internal machining\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction with BSTJO toolholder style\u003c\/li\u003e\n\u003cli\u003eAccepts TPGT 63 triangular inserts via screw-clamp insert holding\u003c\/li\u003e\n\u003cli\u003eNegative rake angle (-8 degrees) for controlled chip formation and edge strength\u003c\/li\u003e\n\u003cli\u003e2-degree lead angle for stable entry and reduced radial cutting forces\u003c\/li\u003e\n\u003cli\u003eSteel construction for rigidity in precision boring applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with TPGT 63 series triangular inserts with a 3\/4-inch inscribed circle and 3\/16-inch insert thickness. Insert compatibility code 63 applies. Coolant-through is not supported on this bar.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis boring bar is installed and adjusted by machinists or toolroom technicians on CNC or manual lathes. Before mounting, ensure the machine spindle is fully stopped and locked out per facility lockout\/tagout procedures. The shank should be clamped securely in the tool turret or boring bar holder to the full recommended engagement depth to minimize overhang deflection. Insert replacement requires the appropriate Torx or hex key for the screw-clamp system; do not overtighten the insert clamp screw.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: BSTJO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand of Holder\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Insert\u003c\/strong\u003e: TPGT 63\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Insert Shape\u003c\/strong\u003e: Triangle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Inscribed Circle\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Insert Thickness\u003c\/strong\u003e: 0.094 inches (3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: -8 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: 2 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 0.188 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SUMITOMO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 2000W27\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51733736161586,"sku":"2000W27","price":162.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/92d42c7b5a3da64160ca157d8e17d11d.jpg?v=1788758847","url":"https:\/\/voomisupply.com\/products\/sumitomo-2000w27-indexable-boring-bar-0-375-in-right-hand","provider":"Voomi Supply","version":"1.0","type":"link"}