{"product_id":"sandvik-coromant-5749328-indexable-boring-bar-1-in-shank","title":"Sandvik Coromant 5749328 Indexable Boring Bar 1 in Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5749328 is a steel indexable boring bar from the Top Lok series, designed for precision internal boring and turning operations in machining environments. It features a 1-inch shank diameter and a 12-inch overall length, providing reach and rigidity for demanding bore applications. The right-hand cut orientation and neutral rake angle at 0 degrees make it a versatile toolholder for consistent, repeatable results. Compatible with TLG-3189L inserts secured via screw clamping, this bar is suited for shops running CNC lathes and boring mills where insert indexability and quick changeover matter.\u003c\/p\u003e\n\u003cp\u003eThis boring bar is intended for use in metal-cutting applications including internal boring and turning on CNC and manual lathes, machining centers, and boring mills. With a minimum bore diameter of 1.376 inches (34.95 mm), it is appropriate for medium-bore work in production and job-shop environments. The multi-use design supports both boring and turning operations from a single toolholder, reducing setup time. Machinists and toolroom technicians are the primary users of this toolholder style.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTop Lok series SI-style toolholder for boring and turning in a single setup\u003c\/li\u003e\n  \u003cli\u003eMinimum bore diameter of 1.376 inches (34.95 mm) for medium-bore applications\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length with 1-inch shank and 1-inch neck diameter for rigid overhang support\u003c\/li\u003e\n  \u003cli\u003eScrew clamping insert retention for secure, repeatable insert indexing\u003c\/li\u003e\n  \u003cli\u003eNeutral rake (0-degree rake angle, 0-degree lead angle) for broad material compatibility\u003c\/li\u003e\n  \u003cli\u003eAccepts TLG-3189L inserts; no coolant-through feature\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with TLG-3189L inserts. Fits standard 1-inch bore bar holders and sleeves compatible with the SI toolholder style. Verify machine interface and insert seat dimensions before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians familiar with indexable tooling systems. Secure the shank in a properly sized boring bar holder or turret station before torquing insert screws to the tool manufacturer's specification using the appropriate Torx or hex key. Ensure the machine spindle is fully stopped and all power is isolated before changing inserts or repositioning the bar. Do not exceed the recommended overhang ratio for the shank diameter, as excessive overhang increases vibration and reduces surface finish quality.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: SI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Lok\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 1.376 inches (34.95 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1 inch (25.40 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 12 inches (304.80 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 0.688 inches (17.48 mm)\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: TLG-3189L\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw Clamping\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 0 degrees (Neutral)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Boring and Turning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Inserts\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.39 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241601\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: SANDVIK COROMANT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5749328\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51752724431154,"sku":"5749328","price":464.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bc45b942a940909b6419cf71659c9df7_be8b5870-06fd-4e37-a4b2-7fbbd431c5ab.jpg?v=1788929948","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5749328-indexable-boring-bar-1-in-shank","provider":"Voomi Supply","version":"1.0","type":"link"}